Home / 51,218.49-70,686.17-31,080.48

Finding the Fourth Proportional to 51,218.49, 70,686.17 and 31,080.48

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Solution

The fourth proportional to 51,218.49, 70,686.17 and 31,080.48 is: 42,893.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,218.49 : 70,686.17 = 31,080.48 : x
  2. Step 2: Convert to fraction form
    51,218.49/70,686.17 = 31,080.48/x
  3. Step 3: Cross multiply
    51,218.49x = 70,686.17 × 31,080.48
  4. Step 4: Simplify right side
    51,218.49x = 2,196,959,937.56
  5. Step 5: Solve for x
    x = 2,196,959,937.56/51,218.49
  6. Step 6: Final answer
    x = 42,893.88

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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.