Home / 89,646.83-123,658.05-55,197.11

Finding the Fourth Proportional to 89,646.83, 123,658.05 and 55,197.11

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Solution

The fourth proportional to 89,646.83, 123,658.05 and 55,197.11 is: 76,138.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,646.83 : 123,658.05 = 55,197.11 : x
  2. Step 2: Convert to fraction form
    89,646.83/123,658.05 = 55,197.11/x
  3. Step 3: Cross multiply
    89,646.83x = 123,658.05 × 55,197.11
  4. Step 4: Simplify right side
    89,646.83x = 6,825,566,988.24
  5. Step 5: Solve for x
    x = 6,825,566,988.24/89,646.83
  6. Step 6: Final answer
    x = 76,138.41

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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.