Home / 57,140.64-85,710-15,587.52

Finding the Fourth Proportional to 57,140.64, 85,710 and 15,587.52

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Solution

The fourth proportional to 57,140.64, 85,710 and 15,587.52 is: 23,381.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,140.64 : 85,710 = 15,587.52 : x
  2. Step 2: Convert to fraction form
    57,140.64/85,710 = 15,587.52/x
  3. Step 3: Cross multiply
    57,140.64x = 85,710 × 15,587.52
  4. Step 4: Simplify right side
    57,140.64x = 1,336,006,339.20
  5. Step 5: Solve for x
    x = 1,336,006,339.20/57,140.64
  6. Step 6: Final answer
    x = 23,381.02

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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.