Home / 75,205.28-112,808.18-19,045.36

Finding the Fourth Proportional to 75,205.28, 112,808.18 and 19,045.36

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Solution

The fourth proportional to 75,205.28, 112,808.18 and 19,045.36 is: 28,568.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,205.28 : 112,808.18 = 19,045.36 : x
  2. Step 2: Convert to fraction form
    75,205.28/112,808.18 = 19,045.36/x
  3. Step 3: Cross multiply
    75,205.28x = 112,808.18 × 19,045.36
  4. Step 4: Simplify right side
    75,205.28x = 2,148,472,399.04
  5. Step 5: Solve for x
    x = 2,148,472,399.04/75,205.28
  6. Step 6: Final answer
    x = 28,568.11

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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.