Home / 89,547.12-123,572.32-49,260.76

Finding the Fourth Proportional to 89,547.12, 123,572.32 and 49,260.76

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Solution

The fourth proportional to 89,547.12, 123,572.32 and 49,260.76 is: 67,978.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,547.12 : 123,572.32 = 49,260.76 : x
  2. Step 2: Convert to fraction form
    89,547.12/123,572.32 = 49,260.76/x
  3. Step 3: Cross multiply
    89,547.12x = 123,572.32 × 49,260.76
  4. Step 4: Simplify right side
    89,547.12x = 6,087,265,966.08
  5. Step 5: Solve for x
    x = 6,087,265,966.08/89,547.12
  6. Step 6: Final answer
    x = 67,978.36

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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.