Home / 84,293.28-126,458.38-31,702.74

Finding the Fourth Proportional to 84,293.28, 126,458.38 and 31,702.74

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Solution

The fourth proportional to 84,293.28, 126,458.38 and 31,702.74 is: 47,561.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,293.28 : 126,458.38 = 31,702.74 : x
  2. Step 2: Convert to fraction form
    84,293.28/126,458.38 = 31,702.74/x
  3. Step 3: Cross multiply
    84,293.28x = 126,458.38 × 31,702.74
  4. Step 4: Simplify right side
    84,293.28x = 4,009,077,141.96
  5. Step 5: Solve for x
    x = 4,009,077,141.96/84,293.28
  6. Step 6: Final answer
    x = 47,561.05

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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.