Home / 57,201.60-85,802.40-47,287.20

Finding the Fourth Proportional to 57,201.60, 85,802.40 and 47,287.20

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Solution

The fourth proportional to 57,201.60, 85,802.40 and 47,287.20 is: 70,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,201.60 : 85,802.40 = 47,287.20 : x
  2. Step 2: Convert to fraction form
    57,201.60/85,802.40 = 47,287.20/x
  3. Step 3: Cross multiply
    57,201.60x = 85,802.40 × 47,287.20
  4. Step 4: Simplify right side
    57,201.60x = 4,057,355,249.28
  5. Step 5: Solve for x
    x = 4,057,355,249.28/57,201.60
  6. Step 6: Final answer
    x = 70,930.80

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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.