Home / 89,367.52-123,385.02-55,412.20

Finding the Fourth Proportional to 89,367.52, 123,385.02 and 55,412.20

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Solution

The fourth proportional to 89,367.52, 123,385.02 and 55,412.20 is: 76,504.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,367.52 : 123,385.02 = 55,412.20 : x
  2. Step 2: Convert to fraction form
    89,367.52/123,385.02 = 55,412.20/x
  3. Step 3: Cross multiply
    89,367.52x = 123,385.02 × 55,412.20
  4. Step 4: Simplify right side
    89,367.52x = 6,837,035,405.24
  5. Step 5: Solve for x
    x = 6,837,035,405.24/89,367.52
  6. Step 6: Final answer
    x = 76,504.70

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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.