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Finding the Fourth Proportional to 86,044.77, 118,743.17 and 48,318.21

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Solution

The fourth proportional to 86,044.77, 118,743.17 and 48,318.21 is: 66,679.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,044.77 : 118,743.17 = 48,318.21 : x
  2. Step 2: Convert to fraction form
    86,044.77/118,743.17 = 48,318.21/x
  3. Step 3: Cross multiply
    86,044.77x = 118,743.17 × 48,318.21
  4. Step 4: Simplify right side
    86,044.77x = 5,737,457,182.53
  5. Step 5: Solve for x
    x = 5,737,457,182.53/86,044.77
  6. Step 6: Final answer
    x = 66,679.91

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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.