Home / 91,621.52-126,453.48-53,897.36

Finding the Fourth Proportional to 91,621.52, 126,453.48 and 53,897.36

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Solution

The fourth proportional to 91,621.52, 126,453.48 and 53,897.36 is: 74,387.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,621.52 : 126,453.48 = 53,897.36 : x
  2. Step 2: Convert to fraction form
    91,621.52/126,453.48 = 53,897.36/x
  3. Step 3: Cross multiply
    91,621.52x = 126,453.48 × 53,897.36
  4. Step 4: Simplify right side
    91,621.52x = 6,815,508,734.81
  5. Step 5: Solve for x
    x = 6,815,508,734.81/91,621.52
  6. Step 6: Final answer
    x = 74,387.64

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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.