Home / 84,274.77-126,431.01-31,684.71

Finding the Fourth Proportional to 84,274.77, 126,431.01 and 31,684.71

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Solution

The fourth proportional to 84,274.77, 126,431.01 and 31,684.71 is: 47,534.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,274.77 : 126,431.01 = 31,684.71 : x
  2. Step 2: Convert to fraction form
    84,274.77/126,431.01 = 31,684.71/x
  3. Step 3: Cross multiply
    84,274.77x = 126,431.01 × 31,684.71
  4. Step 4: Simplify right side
    84,274.77x = 4,005,929,886.86
  5. Step 5: Solve for x
    x = 4,005,929,886.86/84,274.77
  6. Step 6: Final answer
    x = 47,534.15

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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.