Home / 91,098.75-125,663.65-54,774.97

Finding the Fourth Proportional to 91,098.75, 125,663.65 and 54,774.97

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Solution

The fourth proportional to 91,098.75, 125,663.65 and 54,774.97 is: 75,557.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,098.75 : 125,663.65 = 54,774.97 : x
  2. Step 2: Convert to fraction form
    91,098.75/125,663.65 = 54,774.97/x
  3. Step 3: Cross multiply
    91,098.75x = 125,663.65 × 54,774.97
  4. Step 4: Simplify right side
    91,098.75x = 6,883,221,756.65
  5. Step 5: Solve for x
    x = 6,883,221,756.65/91,098.75
  6. Step 6: Final answer
    x = 75,557.81

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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.