Home / 90,537.32-124,947.80-52,309.78

Finding the Fourth Proportional to 90,537.32, 124,947.80 and 52,309.78

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Solution

The fourth proportional to 90,537.32, 124,947.80 and 52,309.78 is: 72,191.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,537.32 : 124,947.80 = 52,309.78 : x
  2. Step 2: Convert to fraction form
    90,537.32/124,947.80 = 52,309.78/x
  3. Step 3: Cross multiply
    90,537.32x = 124,947.80 × 52,309.78
  4. Step 4: Simplify right side
    90,537.32x = 6,535,991,551.73
  5. Step 5: Solve for x
    x = 6,535,991,551.73/90,537.32
  6. Step 6: Final answer
    x = 72,191.13

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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.