Home / 40,805.92-61,081.67-31,421.56

Finding the Fourth Proportional to 40,805.92, 61,081.67 and 31,421.56

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Solution

The fourth proportional to 40,805.92, 61,081.67 and 31,421.56 is: 47,034.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,805.92 : 61,081.67 = 31,421.56 : x
  2. Step 2: Convert to fraction form
    40,805.92/61,081.67 = 31,421.56/x
  3. Step 3: Cross multiply
    40,805.92x = 61,081.67 × 31,421.56
  4. Step 4: Simplify right side
    40,805.92x = 1,919,281,053.40
  5. Step 5: Solve for x
    x = 1,919,281,053.40/40,805.92
  6. Step 6: Final answer
    x = 47,034.38

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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.