Home / 91,641.30-126,526.78-57,238.57

Finding the Fourth Proportional to 91,641.30, 126,526.78 and 57,238.57

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Solution

The fourth proportional to 91,641.30, 126,526.78 and 57,238.57 is: 79,027.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,641.30 : 126,526.78 = 57,238.57 : x
  2. Step 2: Convert to fraction form
    91,641.30/126,526.78 = 57,238.57/x
  3. Step 3: Cross multiply
    91,641.30x = 126,526.78 × 57,238.57
  4. Step 4: Simplify right side
    91,641.30x = 7,242,211,861.64
  5. Step 5: Solve for x
    x = 7,242,211,861.64/91,641.30
  6. Step 6: Final answer
    x = 79,027.82

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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.