Home / 83,430.48-125,144.67-20,251.13

Finding the Fourth Proportional to 83,430.48, 125,144.67 and 20,251.13

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Solution

The fourth proportional to 83,430.48, 125,144.67 and 20,251.13 is: 30,376.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,430.48 : 125,144.67 = 20,251.13 : x
  2. Step 2: Convert to fraction form
    83,430.48/125,144.67 = 20,251.13/x
  3. Step 3: Cross multiply
    83,430.48x = 125,144.67 × 20,251.13
  4. Step 4: Simplify right side
    83,430.48x = 2,534,320,980.98
  5. Step 5: Solve for x
    x = 2,534,320,980.98/83,430.48
  6. Step 6: Final answer
    x = 30,376.44

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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.