Home / 89,761.11-123,869.30-52,038.87

Finding the Fourth Proportional to 89,761.11, 123,869.30 and 52,038.87

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Solution

The fourth proportional to 89,761.11, 123,869.30 and 52,038.87 is: 71,813.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,761.11 : 123,869.30 = 52,038.87 : x
  2. Step 2: Convert to fraction form
    89,761.11/123,869.30 = 52,038.87/x
  3. Step 3: Cross multiply
    89,761.11x = 123,869.30 × 52,038.87
  4. Step 4: Simplify right side
    89,761.11x = 6,446,018,139.50
  5. Step 5: Solve for x
    x = 6,446,018,139.50/89,761.11
  6. Step 6: Final answer
    x = 71,813.04

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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.