Home / 99,569.91-149,354.88-57,987.75

Finding the Fourth Proportional to 99,569.91, 149,354.88 and 57,987.75

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Solution

The fourth proportional to 99,569.91, 149,354.88 and 57,987.75 is: 86,981.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,569.91 : 149,354.88 = 57,987.75 : x
  2. Step 2: Convert to fraction form
    99,569.91/149,354.88 = 57,987.75/x
  3. Step 3: Cross multiply
    99,569.91x = 149,354.88 × 57,987.75
  4. Step 4: Simplify right side
    99,569.91x = 8,660,753,442.72
  5. Step 5: Solve for x
    x = 8,660,753,442.72/99,569.91
  6. Step 6: Final answer
    x = 86,981.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.