Home / 83,955.70-125,890.35-31,338.10

Finding the Fourth Proportional to 83,955.70, 125,890.35 and 31,338.10

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Solution

The fourth proportional to 83,955.70, 125,890.35 and 31,338.10 is: 46,991.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,955.70 : 125,890.35 = 31,338.10 : x
  2. Step 2: Convert to fraction form
    83,955.70/125,890.35 = 31,338.10/x
  3. Step 3: Cross multiply
    83,955.70x = 125,890.35 × 31,338.10
  4. Step 4: Simplify right side
    83,955.70x = 3,945,164,377.34
  5. Step 5: Solve for x
    x = 3,945,164,377.34/83,955.70
  6. Step 6: Final answer
    x = 46,991.02

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1.5x scale

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.