Home / 91,965.60-126,929.04-54,237.60

Finding the Fourth Proportional to 91,965.60, 126,929.04 and 54,237.60

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Solution

The fourth proportional to 91,965.60, 126,929.04 and 54,237.60 is: 74,857.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,965.60 : 126,929.04 = 54,237.60 : x
  2. Step 2: Convert to fraction form
    91,965.60/126,929.04 = 54,237.60/x
  3. Step 3: Cross multiply
    91,965.60x = 126,929.04 × 54,237.60
  4. Step 4: Simplify right side
    91,965.60x = 6,884,326,499.90
  5. Step 5: Solve for x
    x = 6,884,326,499.90/91,965.60
  6. Step 6: Final answer
    x = 74,857.63

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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.