Home / 79,141.66-109,215.60-43,331.92

Finding the Fourth Proportional to 79,141.66, 109,215.60 and 43,331.92

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Solution

The fourth proportional to 79,141.66, 109,215.60 and 43,331.92 is: 59,798.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,141.66 : 109,215.60 = 43,331.92 : x
  2. Step 2: Convert to fraction form
    79,141.66/109,215.60 = 43,331.92/x
  3. Step 3: Cross multiply
    79,141.66x = 109,215.60 × 43,331.92
  4. Step 4: Simplify right side
    79,141.66x = 4,732,521,641.95
  5. Step 5: Solve for x
    x = 4,732,521,641.95/79,141.66
  6. Step 6: Final answer
    x = 59,798.11

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1.5x scale

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.