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Finding the Fourth Proportional to 86,761.48, 119,744.42 and 52,780.52

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Solution

The fourth proportional to 86,761.48, 119,744.42 and 52,780.52 is: 72,845.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,761.48 : 119,744.42 = 52,780.52 : x
  2. Step 2: Convert to fraction form
    86,761.48/119,744.42 = 52,780.52/x
  3. Step 3: Cross multiply
    86,761.48x = 119,744.42 × 52,780.52
  4. Step 4: Simplify right side
    86,761.48x = 6,320,172,754.70
  5. Step 5: Solve for x
    x = 6,320,172,754.70/86,761.48
  6. Step 6: Final answer
    x = 72,845.38

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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.