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Finding the Fourth Proportional to 85,753.62, 118,343.64 and 49,937.86

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Solution

The fourth proportional to 85,753.62, 118,343.64 and 49,937.86 is: 68,916.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,753.62 : 118,343.64 = 49,937.86 : x
  2. Step 2: Convert to fraction form
    85,753.62/118,343.64 = 49,937.86/x
  3. Step 3: Cross multiply
    85,753.62x = 118,343.64 × 49,937.86
  4. Step 4: Simplify right side
    85,753.62x = 5,909,828,126.21
  5. Step 5: Solve for x
    x = 5,909,828,126.21/85,753.62
  6. Step 6: Final answer
    x = 68,916.37

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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.