Home / 90,419.60-124,754.01-52,176.48

Finding the Fourth Proportional to 90,419.60, 124,754.01 and 52,176.48

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Solution

The fourth proportional to 90,419.60, 124,754.01 and 52,176.48 is: 71,989.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,419.60 : 124,754.01 = 52,176.48 : x
  2. Step 2: Convert to fraction form
    90,419.60/124,754.01 = 52,176.48/x
  3. Step 3: Cross multiply
    90,419.60x = 124,754.01 × 52,176.48
  4. Step 4: Simplify right side
    90,419.60x = 6,509,225,107.68
  5. Step 5: Solve for x
    x = 6,509,225,107.68/90,419.60
  6. Step 6: Final answer
    x = 71,989.10

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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.