Home / 56,757.60-85,136.40-38,095.20

Finding the Fourth Proportional to 56,757.60, 85,136.40 and 38,095.20

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Solution

The fourth proportional to 56,757.60, 85,136.40 and 38,095.20 is: 57,142.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,757.60 : 85,136.40 = 38,095.20 : x
  2. Step 2: Convert to fraction form
    56,757.60/85,136.40 = 38,095.20/x
  3. Step 3: Cross multiply
    56,757.60x = 85,136.40 × 38,095.20
  4. Step 4: Simplify right side
    56,757.60x = 3,243,288,185.28
  5. Step 5: Solve for x
    x = 3,243,288,185.28/56,757.60
  6. Step 6: Final answer
    x = 57,142.80

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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.