Home / 71,931.02-107,963.06-36,417.29

Finding the Fourth Proportional to 71,931.02, 107,963.06 and 36,417.29

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Solution

The fourth proportional to 71,931.02, 107,963.06 and 36,417.29 is: 54,659.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,931.02 : 107,963.06 = 36,417.29 : x
  2. Step 2: Convert to fraction form
    71,931.02/107,963.06 = 36,417.29/x
  3. Step 3: Cross multiply
    71,931.02x = 107,963.06 × 36,417.29
  4. Step 4: Simplify right side
    71,931.02x = 3,931,721,616.54
  5. Step 5: Solve for x
    x = 3,931,721,616.54/71,931.02
  6. Step 6: Final answer
    x = 54,659.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.