Home / 66,306.29-99,465.32-18,920.48

Finding the Fourth Proportional to 66,306.29, 99,465.32 and 18,920.48

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Solution

The fourth proportional to 66,306.29, 99,465.32 and 18,920.48 is: 28,382.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,306.29 : 99,465.32 = 18,920.48 : x
  2. Step 2: Convert to fraction form
    66,306.29/99,465.32 = 18,920.48/x
  3. Step 3: Cross multiply
    66,306.29x = 99,465.32 × 18,920.48
  4. Step 4: Simplify right side
    66,306.29x = 1,881,931,147.73
  5. Step 5: Solve for x
    x = 1,881,931,147.73/66,306.29
  6. Step 6: Final answer
    x = 28,382.39

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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.