Home / 61,402.37-84,689.92-42,288.21

Finding the Fourth Proportional to 61,402.37, 84,689.92 and 42,288.21

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Solution

The fourth proportional to 61,402.37, 84,689.92 and 42,288.21 is: 58,326.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,402.37 : 84,689.92 = 42,288.21 : x
  2. Step 2: Convert to fraction form
    61,402.37/84,689.92 = 42,288.21/x
  3. Step 3: Cross multiply
    61,402.37x = 84,689.92 × 42,288.21
  4. Step 4: Simplify right side
    61,402.37x = 3,581,385,174.70
  5. Step 5: Solve for x
    x = 3,581,385,174.70/61,402.37
  6. Step 6: Final answer
    x = 58,326.50

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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.