Home / 45,948.11-68,949.25-19,298.78

Finding the Fourth Proportional to 45,948.11, 68,949.25 and 19,298.78

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Solution

The fourth proportional to 45,948.11, 68,949.25 and 19,298.78 is: 28,959.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,948.11 : 68,949.25 = 19,298.78 : x
  2. Step 2: Convert to fraction form
    45,948.11/68,949.25 = 19,298.78/x
  3. Step 3: Cross multiply
    45,948.11x = 68,949.25 × 19,298.78
  4. Step 4: Simplify right side
    45,948.11x = 1,330,636,406.92
  5. Step 5: Solve for x
    x = 1,330,636,406.92/45,948.11
  6. Step 6: Final answer
    x = 28,959.55

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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.