Home / 66,218.91-99,326.17-28,779.02

Finding the Fourth Proportional to 66,218.91, 99,326.17 and 28,779.02

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Solution

The fourth proportional to 66,218.91, 99,326.17 and 28,779.02 is: 43,167.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,218.91 : 99,326.17 = 28,779.02 : x
  2. Step 2: Convert to fraction form
    66,218.91/99,326.17 = 28,779.02/x
  3. Step 3: Cross multiply
    66,218.91x = 99,326.17 × 28,779.02
  4. Step 4: Simplify right side
    66,218.91x = 2,858,509,689.06
  5. Step 5: Solve for x
    x = 2,858,509,689.06/66,218.91
  6. Step 6: Final answer
    x = 43,167.57

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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.