Home / 75,272.19-112,908.33-19,116.51

Finding the Fourth Proportional to 75,272.19, 112,908.33 and 19,116.51

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Solution

The fourth proportional to 75,272.19, 112,908.33 and 19,116.51 is: 28,674.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,272.19 : 112,908.33 = 19,116.51 : x
  2. Step 2: Convert to fraction form
    75,272.19/112,908.33 = 19,116.51/x
  3. Step 3: Cross multiply
    75,272.19x = 112,908.33 × 19,116.51
  4. Step 4: Simplify right side
    75,272.19x = 2,158,413,219.53
  5. Step 5: Solve for x
    x = 2,158,413,219.53/75,272.19
  6. Step 6: Final answer
    x = 28,674.78

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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.