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Finding the Fourth Proportional to 87,352.63, 120,562.63 and 57,164.74

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Solution

The fourth proportional to 87,352.63, 120,562.63 and 57,164.74 is: 78,897.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,352.63 : 120,562.63 = 57,164.74 : x
  2. Step 2: Convert to fraction form
    87,352.63/120,562.63 = 57,164.74/x
  3. Step 3: Cross multiply
    87,352.63x = 120,562.63 × 57,164.74
  4. Step 4: Simplify right side
    87,352.63x = 6,891,930,953.35
  5. Step 5: Solve for x
    x = 6,891,930,953.35/87,352.63
  6. Step 6: Final answer
    x = 78,897.81

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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.