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Finding the Fourth Proportional to 57,741.60, 86,612.40 and 39,030.60

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Solution

The fourth proportional to 57,741.60, 86,612.40 and 39,030.60 is: 58,545.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,741.60 : 86,612.40 = 39,030.60 : x
  2. Step 2: Convert to fraction form
    57,741.60/86,612.40 = 39,030.60/x
  3. Step 3: Cross multiply
    57,741.60x = 86,612.40 × 39,030.60
  4. Step 4: Simplify right side
    57,741.60x = 3,380,533,939.44
  5. Step 5: Solve for x
    x = 3,380,533,939.44/57,741.60
  6. Step 6: Final answer
    x = 58,545.90

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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.