Home / 74,374.72-102,637.86-40,383.52

Finding the Fourth Proportional to 74,374.72, 102,637.86 and 40,383.52

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Solution

The fourth proportional to 74,374.72, 102,637.86 and 40,383.52 is: 55,729.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,374.72 : 102,637.86 = 40,383.52 : x
  2. Step 2: Convert to fraction form
    74,374.72/102,637.86 = 40,383.52/x
  3. Step 3: Cross multiply
    74,374.72x = 102,637.86 × 40,383.52
  4. Step 4: Simplify right side
    74,374.72x = 4,144,878,072.07
  5. Step 5: Solve for x
    x = 4,144,878,072.07/74,374.72
  6. Step 6: Final answer
    x = 55,729.66

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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.