Home / 57,128.55-85,710.33-25,565.18

Finding the Fourth Proportional to 57,128.55, 85,710.33 and 25,565.18

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Solution

The fourth proportional to 57,128.55, 85,710.33 and 25,565.18 is: 38,355.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,128.55 : 85,710.33 = 25,565.18 : x
  2. Step 2: Convert to fraction form
    57,128.55/85,710.33 = 25,565.18/x
  3. Step 3: Cross multiply
    57,128.55x = 85,710.33 × 25,565.18
  4. Step 4: Simplify right side
    57,128.55x = 2,191,199,585.76
  5. Step 5: Solve for x
    x = 2,191,199,585.76/57,128.55
  6. Step 6: Final answer
    x = 38,355.60

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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.