Home / 83,891.12-125,858.46-31,301

Finding the Fourth Proportional to 83,891.12, 125,858.46 and 31,301

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Solution

The fourth proportional to 83,891.12, 125,858.46 and 31,301 is: 46,959.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,891.12 : 125,858.46 = 31,301 : x
  2. Step 2: Convert to fraction form
    83,891.12/125,858.46 = 31,301/x
  3. Step 3: Cross multiply
    83,891.12x = 125,858.46 × 31,301
  4. Step 4: Simplify right side
    83,891.12x = 3,939,495,656.46
  5. Step 5: Solve for x
    x = 3,939,495,656.46/83,891.12
  6. Step 6: Final answer
    x = 46,959.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.