Home / 81,849.26-112,920-46,031.06

Finding the Fourth Proportional to 81,849.26, 112,920 and 46,031.06

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Solution

The fourth proportional to 81,849.26, 112,920 and 46,031.06 is: 63,504.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,849.26 : 112,920 = 46,031.06 : x
  2. Step 2: Convert to fraction form
    81,849.26/112,920 = 46,031.06/x
  3. Step 3: Cross multiply
    81,849.26x = 112,920 × 46,031.06
  4. Step 4: Simplify right side
    81,849.26x = 5,197,827,295.20
  5. Step 5: Solve for x
    x = 5,197,827,295.20/81,849.26
  6. Step 6: Final answer
    x = 63,504.88

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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.