Home / 57,143.52-85,566.18-45,989.28

Finding the Fourth Proportional to 57,143.52, 85,566.18 and 45,989.28

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Solution

The fourth proportional to 57,143.52, 85,566.18 and 45,989.28 is: 68,863.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,143.52 : 85,566.18 = 45,989.28 : x
  2. Step 2: Convert to fraction form
    57,143.52/85,566.18 = 45,989.28/x
  3. Step 3: Cross multiply
    57,143.52x = 85,566.18 × 45,989.28
  4. Step 4: Simplify right side
    57,143.52x = 3,935,127,010.55
  5. Step 5: Solve for x
    x = 3,935,127,010.55/57,143.52
  6. Step 6: Final answer
    x = 68,863.92

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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.