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Finding the Fourth Proportional to 86,700.56, 119,640.98 and 48,972.38

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Solution

The fourth proportional to 86,700.56, 119,640.98 and 48,972.38 is: 67,578.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,700.56 : 119,640.98 = 48,972.38 : x
  2. Step 2: Convert to fraction form
    86,700.56/119,640.98 = 48,972.38/x
  3. Step 3: Cross multiply
    86,700.56x = 119,640.98 × 48,972.38
  4. Step 4: Simplify right side
    86,700.56x = 5,859,103,060.36
  5. Step 5: Solve for x
    x = 5,859,103,060.36/86,700.56
  6. Step 6: Final answer
    x = 67,578.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.