Home / 57,320.92-79,102.42-31,479.18

Finding the Fourth Proportional to 57,320.92, 79,102.42 and 31,479.18

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Solution

The fourth proportional to 57,320.92, 79,102.42 and 31,479.18 is: 43,441.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,320.92 : 79,102.42 = 31,479.18 : x
  2. Step 2: Convert to fraction form
    57,320.92/79,102.42 = 31,479.18/x
  3. Step 3: Cross multiply
    57,320.92x = 79,102.42 × 31,479.18
  4. Step 4: Simplify right side
    57,320.92x = 2,490,079,317.62
  5. Step 5: Solve for x
    x = 2,490,079,317.62/57,320.92
  6. Step 6: Final answer
    x = 43,441.02

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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.