Home / 75,008.09-103,479.98-49,159.56

Finding the Fourth Proportional to 75,008.09, 103,479.98 and 49,159.56

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Solution

The fourth proportional to 75,008.09, 103,479.98 and 49,159.56 is: 67,819.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,008.09 : 103,479.98 = 49,159.56 : x
  2. Step 2: Convert to fraction form
    75,008.09/103,479.98 = 49,159.56/x
  3. Step 3: Cross multiply
    75,008.09x = 103,479.98 × 49,159.56
  4. Step 4: Simplify right side
    75,008.09x = 5,087,030,039.81
  5. Step 5: Solve for x
    x = 5,087,030,039.81/75,008.09
  6. Step 6: Final answer
    x = 67,819.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.