Home / 45,140.98-67,711.30-13,550.90

Finding the Fourth Proportional to 45,140.98, 67,711.30 and 13,550.90

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Solution

The fourth proportional to 45,140.98, 67,711.30 and 13,550.90 is: 20,326.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,140.98 : 67,711.30 = 13,550.90 : x
  2. Step 2: Convert to fraction form
    45,140.98/67,711.30 = 13,550.90/x
  3. Step 3: Cross multiply
    45,140.98x = 67,711.30 × 13,550.90
  4. Step 4: Simplify right side
    45,140.98x = 917,549,190.57
  5. Step 5: Solve for x
    x = 917,549,190.57/45,140.98
  6. Step 6: Final answer
    x = 20,326.30

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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.