Home / 57,126.20-85,689.30-17,695.40

Finding the Fourth Proportional to 57,126.20, 85,689.30 and 17,695.40

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Solution

The fourth proportional to 57,126.20, 85,689.30 and 17,695.40 is: 26,543.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,126.20 : 85,689.30 = 17,695.40 : x
  2. Step 2: Convert to fraction form
    57,126.20/85,689.30 = 17,695.40/x
  3. Step 3: Cross multiply
    57,126.20x = 85,689.30 × 17,695.40
  4. Step 4: Simplify right side
    57,126.20x = 1,516,306,439.22
  5. Step 5: Solve for x
    x = 1,516,306,439.22/57,126.20
  6. Step 6: Final answer
    x = 26,543.10

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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.