Home / 82,585.62-123,878.51-20,256.12

Finding the Fourth Proportional to 82,585.62, 123,878.51 and 20,256.12

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Solution

The fourth proportional to 82,585.62, 123,878.51 and 20,256.12 is: 30,384.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,585.62 : 123,878.51 = 20,256.12 : x
  2. Step 2: Convert to fraction form
    82,585.62/123,878.51 = 20,256.12/x
  3. Step 3: Cross multiply
    82,585.62x = 123,878.51 × 20,256.12
  4. Step 4: Simplify right side
    82,585.62x = 2,509,297,862.70
  5. Step 5: Solve for x
    x = 2,509,297,862.70/82,585.62
  6. Step 6: Final answer
    x = 30,384.20

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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.