Home / 81,143.01-121,736.30-24,984.45

Finding the Fourth Proportional to 81,143.01, 121,736.30 and 24,984.45

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Solution

The fourth proportional to 81,143.01, 121,736.30 and 24,984.45 is: 37,483.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,143.01 : 121,736.30 = 24,984.45 : x
  2. Step 2: Convert to fraction form
    81,143.01/121,736.30 = 24,984.45/x
  3. Step 3: Cross multiply
    81,143.01x = 121,736.30 × 24,984.45
  4. Step 4: Simplify right side
    81,143.01x = 3,041,514,375.61
  5. Step 5: Solve for x
    x = 3,041,514,375.61/81,143.01
  6. Step 6: Final answer
    x = 37,483.38

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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.