Home / 91,306.45-126,015.42-52,543.48

Finding the Fourth Proportional to 91,306.45, 126,015.42 and 52,543.48

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Solution

The fourth proportional to 91,306.45, 126,015.42 and 52,543.48 is: 72,517.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,306.45 : 126,015.42 = 52,543.48 : x
  2. Step 2: Convert to fraction form
    91,306.45/126,015.42 = 52,543.48/x
  3. Step 3: Cross multiply
    91,306.45x = 126,015.42 × 52,543.48
  4. Step 4: Simplify right side
    91,306.45x = 6,621,288,720.22
  5. Step 5: Solve for x
    x = 6,621,288,720.22/91,306.45
  6. Step 6: Final answer
    x = 72,517.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.