Home / 89,783.11-123,901.52-49,498.30

Finding the Fourth Proportional to 89,783.11, 123,901.52 and 49,498.30

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Solution

The fourth proportional to 89,783.11, 123,901.52 and 49,498.30 is: 68,308.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,783.11 : 123,901.52 = 49,498.30 : x
  2. Step 2: Convert to fraction form
    89,783.11/123,901.52 = 49,498.30/x
  3. Step 3: Cross multiply
    89,783.11x = 123,901.52 × 49,498.30
  4. Step 4: Simplify right side
    89,783.11x = 6,132,914,607.42
  5. Step 5: Solve for x
    x = 6,132,914,607.42/89,783.11
  6. Step 6: Final answer
    x = 68,308.11

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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.