Home / 83,666.90-125,499.54-20,487.32

Finding the Fourth Proportional to 83,666.90, 125,499.54 and 20,487.32

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Solution

The fourth proportional to 83,666.90, 125,499.54 and 20,487.32 is: 30,730.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,666.90 : 125,499.54 = 20,487.32 : x
  2. Step 2: Convert to fraction form
    83,666.90/125,499.54 = 20,487.32/x
  3. Step 3: Cross multiply
    83,666.90x = 125,499.54 × 20,487.32
  4. Step 4: Simplify right side
    83,666.90x = 2,571,149,235.83
  5. Step 5: Solve for x
    x = 2,571,149,235.83/83,666.90
  6. Step 6: Final answer
    x = 30,730.78

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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.