Home / 83,897.12-125,867.48-31,307

Finding the Fourth Proportional to 83,897.12, 125,867.48 and 31,307

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Solution

The fourth proportional to 83,897.12, 125,867.48 and 31,307 is: 46,968.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,897.12 : 125,867.48 = 31,307 : x
  2. Step 2: Convert to fraction form
    83,897.12/125,867.48 = 31,307/x
  3. Step 3: Cross multiply
    83,897.12x = 125,867.48 × 31,307
  4. Step 4: Simplify right side
    83,897.12x = 3,940,533,196.36
  5. Step 5: Solve for x
    x = 3,940,533,196.36/83,897.12
  6. Step 6: Final answer
    x = 46,968.63

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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.