Home / 64,992.18-89,689.84-38,135.15

Finding the Fourth Proportional to 64,992.18, 89,689.84 and 38,135.15

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Solution

The fourth proportional to 64,992.18, 89,689.84 and 38,135.15 is: 52,626.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,992.18 : 89,689.84 = 38,135.15 : x
  2. Step 2: Convert to fraction form
    64,992.18/89,689.84 = 38,135.15/x
  3. Step 3: Cross multiply
    64,992.18x = 89,689.84 × 38,135.15
  4. Step 4: Simplify right side
    64,992.18x = 3,420,335,294.43
  5. Step 5: Solve for x
    x = 3,420,335,294.43/64,992.18
  6. Step 6: Final answer
    x = 52,626.87

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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.