Home / 99,580.28-137,419.05-54,258.63

Finding the Fourth Proportional to 99,580.28, 137,419.05 and 54,258.63

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Solution

The fourth proportional to 99,580.28, 137,419.05 and 54,258.63 is: 74,875.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,580.28 : 137,419.05 = 54,258.63 : x
  2. Step 2: Convert to fraction form
    99,580.28/137,419.05 = 54,258.63/x
  3. Step 3: Cross multiply
    99,580.28x = 137,419.05 × 54,258.63
  4. Step 4: Simplify right side
    99,580.28x = 7,456,169,388.90
  5. Step 5: Solve for x
    x = 7,456,169,388.90/99,580.28
  6. Step 6: Final answer
    x = 74,875.97

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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.