Home / 90,741.12-125,219.52-53,040

Finding the Fourth Proportional to 90,741.12, 125,219.52 and 53,040

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Solution

The fourth proportional to 90,741.12, 125,219.52 and 53,040 is: 73,193.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,741.12 : 125,219.52 = 53,040 : x
  2. Step 2: Convert to fraction form
    90,741.12/125,219.52 = 53,040/x
  3. Step 3: Cross multiply
    90,741.12x = 125,219.52 × 53,040
  4. Step 4: Simplify right side
    90,741.12x = 6,641,643,340.80
  5. Step 5: Solve for x
    x = 6,641,643,340.80/90,741.12
  6. Step 6: Final answer
    x = 73,193.31

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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.