Home / 79,187.31-109,275.57-43,377.66

Finding the Fourth Proportional to 79,187.31, 109,275.57 and 43,377.66

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Solution

The fourth proportional to 79,187.31, 109,275.57 and 43,377.66 is: 59,859.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,187.31 : 109,275.57 = 43,377.66 : x
  2. Step 2: Convert to fraction form
    79,187.31/109,275.57 = 43,377.66/x
  3. Step 3: Cross multiply
    79,187.31x = 109,275.57 × 43,377.66
  4. Step 4: Simplify right side
    79,187.31x = 4,740,118,521.77
  5. Step 5: Solve for x
    x = 4,740,118,521.77/79,187.31
  6. Step 6: Final answer
    x = 59,859.57

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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.