Home / 57,141.20-85,711.80-17,710.40

Finding the Fourth Proportional to 57,141.20, 85,711.80 and 17,710.40

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Solution

The fourth proportional to 57,141.20, 85,711.80 and 17,710.40 is: 26,565.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,141.20 : 85,711.80 = 17,710.40 : x
  2. Step 2: Convert to fraction form
    57,141.20/85,711.80 = 17,710.40/x
  3. Step 3: Cross multiply
    57,141.20x = 85,711.80 × 17,710.40
  4. Step 4: Simplify right side
    57,141.20x = 1,517,990,262.72
  5. Step 5: Solve for x
    x = 1,517,990,262.72/57,141.20
  6. Step 6: Final answer
    x = 26,565.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.