Home / 91,824.16-126,696.72-54,101.92

Finding the Fourth Proportional to 91,824.16, 126,696.72 and 54,101.92

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Solution

The fourth proportional to 91,824.16, 126,696.72 and 54,101.92 is: 74,648.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,824.16 : 126,696.72 = 54,101.92 : x
  2. Step 2: Convert to fraction form
    91,824.16/126,696.72 = 54,101.92/x
  3. Step 3: Cross multiply
    91,824.16x = 126,696.72 × 54,101.92
  4. Step 4: Simplify right side
    91,824.16x = 6,854,535,809.70
  5. Step 5: Solve for x
    x = 6,854,535,809.70/91,824.16
  6. Step 6: Final answer
    x = 74,648.50

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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.