Home / 90,851.70-125,322.19-59,041.78

Finding the Fourth Proportional to 90,851.70, 125,322.19 and 59,041.78

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Solution

The fourth proportional to 90,851.70, 125,322.19 and 59,041.78 is: 81,443.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,851.70 : 125,322.19 = 59,041.78 : x
  2. Step 2: Convert to fraction form
    90,851.70/125,322.19 = 59,041.78/x
  3. Step 3: Cross multiply
    90,851.70x = 125,322.19 × 59,041.78
  4. Step 4: Simplify right side
    90,851.70x = 7,399,245,171.10
  5. Step 5: Solve for x
    x = 7,399,245,171.10/90,851.70
  6. Step 6: Final answer
    x = 81,443.11

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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.