Home / 83,973.09-115,874.30-51,702.59

Finding the Fourth Proportional to 83,973.09, 115,874.30 and 51,702.59

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Solution

The fourth proportional to 83,973.09, 115,874.30 and 51,702.59 is: 71,344.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,973.09 : 115,874.30 = 51,702.59 : x
  2. Step 2: Convert to fraction form
    83,973.09/115,874.30 = 51,702.59/x
  3. Step 3: Cross multiply
    83,973.09x = 115,874.30 × 51,702.59
  4. Step 4: Simplify right side
    83,973.09x = 5,991,000,586.55
  5. Step 5: Solve for x
    x = 5,991,000,586.55/83,973.09
  6. Step 6: Final answer
    x = 71,344.29

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1.5x scale

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.