Home / 49,585.13-74,377.69-12,649.13

Finding the Fourth Proportional to 49,585.13, 74,377.69 and 12,649.13

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Solution

The fourth proportional to 49,585.13, 74,377.69 and 12,649.13 is: 18,973.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,585.13 : 74,377.69 = 12,649.13 : x
  2. Step 2: Convert to fraction form
    49,585.13/74,377.69 = 12,649.13/x
  3. Step 3: Cross multiply
    49,585.13x = 74,377.69 × 12,649.13
  4. Step 4: Simplify right side
    49,585.13x = 940,813,069.91
  5. Step 5: Solve for x
    x = 940,813,069.91/49,585.13
  6. Step 6: Final answer
    x = 18,973.69

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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.