Home / 91,312.98-126,092.07-57,380.28

Finding the Fourth Proportional to 91,312.98, 126,092.07 and 57,380.28

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Solution

The fourth proportional to 91,312.98, 126,092.07 and 57,380.28 is: 79,235.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,312.98 : 126,092.07 = 57,380.28 : x
  2. Step 2: Convert to fraction form
    91,312.98/126,092.07 = 57,380.28/x
  3. Step 3: Cross multiply
    91,312.98x = 126,092.07 × 57,380.28
  4. Step 4: Simplify right side
    91,312.98x = 7,235,198,282.38
  5. Step 5: Solve for x
    x = 7,235,198,282.38/91,312.98
  6. Step 6: Final answer
    x = 79,235.16

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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.