Home / 89,543.52-123,520.95-55,540.26

Finding the Fourth Proportional to 89,543.52, 123,520.95 and 55,540.26

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Solution

The fourth proportional to 89,543.52, 123,520.95 and 55,540.26 is: 76,615.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,543.52 : 123,520.95 = 55,540.26 : x
  2. Step 2: Convert to fraction form
    89,543.52/123,520.95 = 55,540.26/x
  3. Step 3: Cross multiply
    89,543.52x = 123,520.95 × 55,540.26
  4. Step 4: Simplify right side
    89,543.52x = 6,860,385,678.45
  5. Step 5: Solve for x
    x = 6,860,385,678.45/89,543.52
  6. Step 6: Final answer
    x = 76,615.10

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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.