Home / 90,987.05-125,562.63-52,769.25

Finding the Fourth Proportional to 90,987.05, 125,562.63 and 52,769.25

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Solution

The fourth proportional to 90,987.05, 125,562.63 and 52,769.25 is: 72,821.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,987.05 : 125,562.63 = 52,769.25 : x
  2. Step 2: Convert to fraction form
    90,987.05/125,562.63 = 52,769.25/x
  3. Step 3: Cross multiply
    90,987.05x = 125,562.63 × 52,769.25
  4. Step 4: Simplify right side
    90,987.05x = 6,625,845,813.13
  5. Step 5: Solve for x
    x = 6,625,845,813.13/90,987.05
  6. Step 6: Final answer
    x = 72,821.86

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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.