Home / 40,930.20-61,337.70-30,317.40

Finding the Fourth Proportional to 40,930.20, 61,337.70 and 30,317.40

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Solution

The fourth proportional to 40,930.20, 61,337.70 and 30,317.40 is: 45,433.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,930.20 : 61,337.70 = 30,317.40 : x
  2. Step 2: Convert to fraction form
    40,930.20/61,337.70 = 30,317.40/x
  3. Step 3: Cross multiply
    40,930.20x = 61,337.70 × 30,317.40
  4. Step 4: Simplify right side
    40,930.20x = 1,859,599,585.98
  5. Step 5: Solve for x
    x = 1,859,599,585.98/40,930.20
  6. Step 6: Final answer
    x = 45,433.44

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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.