Home / 91,515.86-126,337.74-57,543.04

Finding the Fourth Proportional to 91,515.86, 126,337.74 and 57,543.04

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Solution

The fourth proportional to 91,515.86, 126,337.74 and 57,543.04 is: 79,438.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,515.86 : 126,337.74 = 57,543.04 : x
  2. Step 2: Convert to fraction form
    91,515.86/126,337.74 = 57,543.04/x
  3. Step 3: Cross multiply
    91,515.86x = 126,337.74 × 57,543.04
  4. Step 4: Simplify right side
    91,515.86x = 7,269,857,626.33
  5. Step 5: Solve for x
    x = 7,269,857,626.33/91,515.86
  6. Step 6: Final answer
    x = 79,438.23

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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.