Home / 57,741.40-86,612.10-54,515.80

Finding the Fourth Proportional to 57,741.40, 86,612.10 and 54,515.80

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Solution

The fourth proportional to 57,741.40, 86,612.10 and 54,515.80 is: 81,773.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,741.40 : 86,612.10 = 54,515.80 : x
  2. Step 2: Convert to fraction form
    57,741.40/86,612.10 = 54,515.80/x
  3. Step 3: Cross multiply
    57,741.40x = 86,612.10 × 54,515.80
  4. Step 4: Simplify right side
    57,741.40x = 4,721,727,921.18
  5. Step 5: Solve for x
    x = 4,721,727,921.18/57,741.40
  6. Step 6: Final answer
    x = 81,773.70

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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.