Home / 89,421.24-123,401.68-49,135.88

Finding the Fourth Proportional to 89,421.24, 123,401.68 and 49,135.88

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Solution

The fourth proportional to 89,421.24, 123,401.68 and 49,135.88 is: 67,807.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,421.24 : 123,401.68 = 49,135.88 : x
  2. Step 2: Convert to fraction form
    89,421.24/123,401.68 = 49,135.88/x
  3. Step 3: Cross multiply
    89,421.24x = 123,401.68 × 49,135.88
  4. Step 4: Simplify right side
    89,421.24x = 6,063,450,140.28
  5. Step 5: Solve for x
    x = 6,063,450,140.28/89,421.24
  6. Step 6: Final answer
    x = 67,807.72

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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.