Home / 81,006.82-121,510.23-25,598.50

Finding the Fourth Proportional to 81,006.82, 121,510.23 and 25,598.50

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Solution

The fourth proportional to 81,006.82, 121,510.23 and 25,598.50 is: 38,397.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,006.82 : 121,510.23 = 25,598.50 : x
  2. Step 2: Convert to fraction form
    81,006.82/121,510.23 = 25,598.50/x
  3. Step 3: Cross multiply
    81,006.82x = 121,510.23 × 25,598.50
  4. Step 4: Simplify right side
    81,006.82x = 3,110,479,622.66
  5. Step 5: Solve for x
    x = 3,110,479,622.66/81,006.82
  6. Step 6: Final answer
    x = 38,397.75

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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.