Home / 89,139.29-123,011.87-48,854.75

Finding the Fourth Proportional to 89,139.29, 123,011.87 and 48,854.75

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Solution

The fourth proportional to 89,139.29, 123,011.87 and 48,854.75 is: 67,419.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,139.29 : 123,011.87 = 48,854.75 : x
  2. Step 2: Convert to fraction form
    89,139.29/123,011.87 = 48,854.75/x
  3. Step 3: Cross multiply
    89,139.29x = 123,011.87 × 48,854.75
  4. Step 4: Simplify right side
    89,139.29x = 6,009,713,296.55
  5. Step 5: Solve for x
    x = 6,009,713,296.55/89,139.29
  6. Step 6: Final answer
    x = 67,419.36

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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.