Home / 90,530.78-124,947.48-52,805.02

Finding the Fourth Proportional to 90,530.78, 124,947.48 and 52,805.02

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Solution

The fourth proportional to 90,530.78, 124,947.48 and 52,805.02 is: 72,879.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,530.78 : 124,947.48 = 52,805.02 : x
  2. Step 2: Convert to fraction form
    90,530.78/124,947.48 = 52,805.02/x
  3. Step 3: Cross multiply
    90,530.78x = 124,947.48 × 52,805.02
  4. Step 4: Simplify right side
    90,530.78x = 6,597,854,180.35
  5. Step 5: Solve for x
    x = 6,597,854,180.35/90,530.78
  6. Step 6: Final answer
    x = 72,879.68

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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.