Home / 90,646.48-125,100.58-54,845.28

Finding the Fourth Proportional to 90,646.48, 125,100.58 and 54,845.28

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Solution

The fourth proportional to 90,646.48, 125,100.58 and 54,845.28 is: 75,691.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,646.48 : 125,100.58 = 54,845.28 : x
  2. Step 2: Convert to fraction form
    90,646.48/125,100.58 = 54,845.28/x
  3. Step 3: Cross multiply
    90,646.48x = 125,100.58 × 54,845.28
  4. Step 4: Simplify right side
    90,646.48x = 6,861,176,338.26
  5. Step 5: Solve for x
    x = 6,861,176,338.26/90,646.48
  6. Step 6: Final answer
    x = 75,691.59

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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.