Home / 72,612,013.52-100,204,594.44-39,572,270.48

Finding the Fourth Proportional to 72,612,013.52, 100,204,594.44 and 39,572,270.48

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Solution

The fourth proportional to 72,612,013.52, 100,204,594.44 and 39,572,270.48 is: 54,609,741.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,612,013.52 : 100,204,594.44 = 39,572,270.48 : x
  2. Step 2: Convert to fraction form
    72,612,013.52/100,204,594.44 = 39,572,270.48/x
  3. Step 3: Cross multiply
    72,612,013.52x = 100,204,594.44 × 39,572,270.48
  4. Step 4: Simplify right side
    72,612,013.52x = 3,965,323,314,518,383.50
  5. Step 5: Solve for x
    x = 3,965,323,314,518,383.50/72,612,013.52
  6. Step 6: Final answer
    x = 54,609,741.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.