Home / 91,318.22-126,099.42-57,385.70

Finding the Fourth Proportional to 91,318.22, 126,099.42 and 57,385.70

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Solution

The fourth proportional to 91,318.22, 126,099.42 and 57,385.70 is: 79,242.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,318.22 : 126,099.42 = 57,385.70 : x
  2. Step 2: Convert to fraction form
    91,318.22/126,099.42 = 57,385.70/x
  3. Step 3: Cross multiply
    91,318.22x = 126,099.42 × 57,385.70
  4. Step 4: Simplify right side
    91,318.22x = 7,236,303,486.29
  5. Step 5: Solve for x
    x = 7,236,303,486.29/91,318.22
  6. Step 6: Final answer
    x = 79,242.71

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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.