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Finding the Fourth Proportional to 86,059.52, 118,761.85 and 47,818.91

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Solution

The fourth proportional to 86,059.52, 118,761.85 and 47,818.91 is: 65,989.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,059.52 : 118,761.85 = 47,818.91 : x
  2. Step 2: Convert to fraction form
    86,059.52/118,761.85 = 47,818.91/x
  3. Step 3: Cross multiply
    86,059.52x = 118,761.85 × 47,818.91
  4. Step 4: Simplify right side
    86,059.52x = 5,679,062,393.94
  5. Step 5: Solve for x
    x = 5,679,062,393.94/86,059.52
  6. Step 6: Final answer
    x = 65,989.94

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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.