Home / 81,267.64-112,161.30-49,430.38

Finding the Fourth Proportional to 81,267.64, 112,161.30 and 49,430.38

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Solution

The fourth proportional to 81,267.64, 112,161.30 and 49,430.38 is: 68,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,267.64 : 112,161.30 = 49,430.38 : x
  2. Step 2: Convert to fraction form
    81,267.64/112,161.30 = 49,430.38/x
  3. Step 3: Cross multiply
    81,267.64x = 112,161.30 × 49,430.38
  4. Step 4: Simplify right side
    81,267.64x = 5,544,175,680.29
  5. Step 5: Solve for x
    x = 5,544,175,680.29/81,267.64
  6. Step 6: Final answer
    x = 68,221.20

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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.