Home / 81,397.44-112,329.59-45,587.21

Finding the Fourth Proportional to 81,397.44, 112,329.59 and 45,587.21

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Solution

The fourth proportional to 81,397.44, 112,329.59 and 45,587.21 is: 62,910.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,397.44 : 112,329.59 = 45,587.21 : x
  2. Step 2: Convert to fraction form
    81,397.44/112,329.59 = 45,587.21/x
  3. Step 3: Cross multiply
    81,397.44x = 112,329.59 × 45,587.21
  4. Step 4: Simplify right side
    81,397.44x = 5,120,791,818.96
  5. Step 5: Solve for x
    x = 5,120,791,818.96/81,397.44
  6. Step 6: Final answer
    x = 62,910.97

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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.