Home / 81,559.31-122,366.70-25,412.13

Finding the Fourth Proportional to 81,559.31, 122,366.70 and 25,412.13

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Solution

The fourth proportional to 81,559.31, 122,366.70 and 25,412.13 is: 38,126.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,559.31 : 122,366.70 = 25,412.13 : x
  2. Step 2: Convert to fraction form
    81,559.31/122,366.70 = 25,412.13/x
  3. Step 3: Cross multiply
    81,559.31x = 122,366.70 × 25,412.13
  4. Step 4: Simplify right side
    81,559.31x = 3,109,598,488.07
  5. Step 5: Solve for x
    x = 3,109,598,488.07/81,559.31
  6. Step 6: Final answer
    x = 38,126.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.