Home / 81,127.90-121,703.38-24,972.69

Finding the Fourth Proportional to 81,127.90, 121,703.38 and 24,972.69

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Solution

The fourth proportional to 81,127.90, 121,703.38 and 24,972.69 is: 37,462.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,127.90 : 121,703.38 = 24,972.69 : x
  2. Step 2: Convert to fraction form
    81,127.90/121,703.38 = 24,972.69/x
  3. Step 3: Cross multiply
    81,127.90x = 121,703.38 × 24,972.69
  4. Step 4: Simplify right side
    81,127.90x = 3,039,260,780.69
  5. Step 5: Solve for x
    x = 3,039,260,780.69/81,127.90
  6. Step 6: Final answer
    x = 37,462.58

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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.