Home / 83,741.40-125,597.70-31,123.80

Finding the Fourth Proportional to 83,741.40, 125,597.70 and 31,123.80

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Solution

The fourth proportional to 83,741.40, 125,597.70 and 31,123.80 is: 46,680.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,741.40 : 125,597.70 = 31,123.80 : x
  2. Step 2: Convert to fraction form
    83,741.40/125,597.70 = 31,123.80/x
  3. Step 3: Cross multiply
    83,741.40x = 125,597.70 × 31,123.80
  4. Step 4: Simplify right side
    83,741.40x = 3,909,077,695.26
  5. Step 5: Solve for x
    x = 3,909,077,695.26/83,741.40
  6. Step 6: Final answer
    x = 46,680.35

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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.