Home / 57,140.75-85,710.22-15,587.75

Finding the Fourth Proportional to 57,140.75, 85,710.22 and 15,587.75

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Solution

The fourth proportional to 57,140.75, 85,710.22 and 15,587.75 is: 23,381.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,140.75 : 85,710.22 = 15,587.75 : x
  2. Step 2: Convert to fraction form
    57,140.75/85,710.22 = 15,587.75/x
  3. Step 3: Cross multiply
    57,140.75x = 85,710.22 × 15,587.75
  4. Step 4: Simplify right side
    57,140.75x = 1,336,029,657.11
  5. Step 5: Solve for x
    x = 1,336,029,657.11/57,140.75
  6. Step 6: Final answer
    x = 23,381.38

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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.