Home / 45,878.05-68,805.19-12,590.29

Finding the Fourth Proportional to 45,878.05, 68,805.19 and 12,590.29

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Solution

The fourth proportional to 45,878.05, 68,805.19 and 12,590.29 is: 18,882.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,878.05 : 68,805.19 = 12,590.29 : x
  2. Step 2: Convert to fraction form
    45,878.05/68,805.19 = 12,590.29/x
  3. Step 3: Cross multiply
    45,878.05x = 68,805.19 × 12,590.29
  4. Step 4: Simplify right side
    45,878.05x = 866,277,295.61
  5. Step 5: Solve for x
    x = 866,277,295.61/45,878.05
  6. Step 6: Final answer
    x = 18,882.17

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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.