Home / 99,597.36-137,442.60-54,275.70

Finding the Fourth Proportional to 99,597.36, 137,442.60 and 54,275.70

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Solution

The fourth proportional to 99,597.36, 137,442.60 and 54,275.70 is: 74,899.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,597.36 : 137,442.60 = 54,275.70 : x
  2. Step 2: Convert to fraction form
    99,597.36/137,442.60 = 54,275.70/x
  3. Step 3: Cross multiply
    99,597.36x = 137,442.60 × 54,275.70
  4. Step 4: Simplify right side
    99,597.36x = 7,459,793,324.82
  5. Step 5: Solve for x
    x = 7,459,793,324.82/99,597.36
  6. Step 6: Final answer
    x = 74,899.51

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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.