Home / 45,320.04-68,002.38-20,377.71

Finding the Fourth Proportional to 45,320.04, 68,002.38 and 20,377.71

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Solution

The fourth proportional to 45,320.04, 68,002.38 and 20,377.71 is: 30,576.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,320.04 : 68,002.38 = 20,377.71 : x
  2. Step 2: Convert to fraction form
    45,320.04/68,002.38 = 20,377.71/x
  3. Step 3: Cross multiply
    45,320.04x = 68,002.38 × 20,377.71
  4. Step 4: Simplify right side
    45,320.04x = 1,385,732,778.95
  5. Step 5: Solve for x
    x = 1,385,732,778.95/45,320.04
  6. Step 6: Final answer
    x = 30,576.60

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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.