Home / 53,508.60-80,186.10-39,358.20

Finding the Fourth Proportional to 53,508.60, 80,186.10 and 39,358.20

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Solution

The fourth proportional to 53,508.60, 80,186.10 and 39,358.20 is: 58,980.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,508.60 : 80,186.10 = 39,358.20 : x
  2. Step 2: Convert to fraction form
    53,508.60/80,186.10 = 39,358.20/x
  3. Step 3: Cross multiply
    53,508.60x = 80,186.10 × 39,358.20
  4. Step 4: Simplify right side
    53,508.60x = 3,155,980,561.02
  5. Step 5: Solve for x
    x = 3,155,980,561.02/53,508.60
  6. Step 6: Final answer
    x = 58,980.81

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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.