Home / 90,215.28-124,484.04-49,926.96

Finding the Fourth Proportional to 90,215.28, 124,484.04 and 49,926.96

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Solution

The fourth proportional to 90,215.28, 124,484.04 and 49,926.96 is: 68,891.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,215.28 : 124,484.04 = 49,926.96 : x
  2. Step 2: Convert to fraction form
    90,215.28/124,484.04 = 49,926.96/x
  3. Step 3: Cross multiply
    90,215.28x = 124,484.04 × 49,926.96
  4. Step 4: Simplify right side
    90,215.28x = 6,215,109,685.72
  5. Step 5: Solve for x
    x = 6,215,109,685.72/90,215.28
  6. Step 6: Final answer
    x = 68,891.98

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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.