Home / 71,125.11-98,142.65-40,899.41

Finding the Fourth Proportional to 71,125.11, 98,142.65 and 40,899.41

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Solution

The fourth proportional to 71,125.11, 98,142.65 and 40,899.41 is: 56,435.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,125.11 : 98,142.65 = 40,899.41 : x
  2. Step 2: Convert to fraction form
    71,125.11/98,142.65 = 40,899.41/x
  3. Step 3: Cross multiply
    71,125.11x = 98,142.65 × 40,899.41
  4. Step 4: Simplify right side
    71,125.11x = 4,013,976,088.52
  5. Step 5: Solve for x
    x = 4,013,976,088.52/71,125.11
  6. Step 6: Final answer
    x = 56,435.43

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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.