Home / 40,737.33-56,178.09-31,781.57

Finding the Fourth Proportional to 40,737.33, 56,178.09 and 31,781.57

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Solution

The fourth proportional to 40,737.33, 56,178.09 and 31,781.57 is: 43,827.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,737.33 : 56,178.09 = 31,781.57 : x
  2. Step 2: Convert to fraction form
    40,737.33/56,178.09 = 31,781.57/x
  3. Step 3: Cross multiply
    40,737.33x = 56,178.09 × 31,781.57
  4. Step 4: Simplify right side
    40,737.33x = 1,785,427,618.91
  5. Step 5: Solve for x
    x = 1,785,427,618.91/40,737.33
  6. Step 6: Final answer
    x = 43,827.80

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1.5x scale

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.