Home / 66,160.18-99,240.11-28,715.39

Finding the Fourth Proportional to 66,160.18, 99,240.11 and 28,715.39

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Solution

The fourth proportional to 66,160.18, 99,240.11 and 28,715.39 is: 43,073.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,160.18 : 99,240.11 = 28,715.39 : x
  2. Step 2: Convert to fraction form
    66,160.18/99,240.11 = 28,715.39/x
  3. Step 3: Cross multiply
    66,160.18x = 99,240.11 × 28,715.39
  4. Step 4: Simplify right side
    66,160.18x = 2,849,718,566.82
  5. Step 5: Solve for x
    x = 2,849,718,566.82/66,160.18
  6. Step 6: Final answer
    x = 43,073.02

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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.