Home / 40,718.83-61,008.12-31,830.70

Finding the Fourth Proportional to 40,718.83, 61,008.12 and 31,830.70

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Solution

The fourth proportional to 40,718.83, 61,008.12 and 31,830.70 is: 47,691.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,718.83 : 61,008.12 = 31,830.70 : x
  2. Step 2: Convert to fraction form
    40,718.83/61,008.12 = 31,830.70/x
  3. Step 3: Cross multiply
    40,718.83x = 61,008.12 × 31,830.70
  4. Step 4: Simplify right side
    40,718.83x = 1,941,931,165.28
  5. Step 5: Solve for x
    x = 1,941,931,165.28/40,718.83
  6. Step 6: Final answer
    x = 47,691.23

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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.