Home / 89,968.91-124,157.12-49,685.40

Finding the Fourth Proportional to 89,968.91, 124,157.12 and 49,685.40

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Solution

The fourth proportional to 89,968.91, 124,157.12 and 49,685.40 is: 68,565.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,968.91 : 124,157.12 = 49,685.40 : x
  2. Step 2: Convert to fraction form
    89,968.91/124,157.12 = 49,685.40/x
  3. Step 3: Cross multiply
    89,968.91x = 124,157.12 × 49,685.40
  4. Step 4: Simplify right side
    89,968.91x = 6,168,795,921.62
  5. Step 5: Solve for x
    x = 6,168,795,921.62/89,968.91
  6. Step 6: Final answer
    x = 68,565.87

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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.