Home / 72,612,011.52-100,204,591.68-39,572,268.48

Finding the Fourth Proportional to 72,612,011.52, 100,204,591.68 and 39,572,268.48

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Solution

The fourth proportional to 72,612,011.52, 100,204,591.68 and 39,572,268.48 is: 54,609,739.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,612,011.52 : 100,204,591.68 = 39,572,268.48 : x
  2. Step 2: Convert to fraction form
    72,612,011.52/100,204,591.68 = 39,572,268.48/x
  3. Step 3: Cross multiply
    72,612,011.52x = 100,204,591.68 × 39,572,268.48
  4. Step 4: Simplify right side
    72,612,011.52x = 3,965,323,004,889,734
  5. Step 5: Solve for x
    x = 3,965,323,004,889,734/72,612,011.52
  6. Step 6: Final answer
    x = 54,609,739.10

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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.