Home / 66,062.30-99,116.49-28,130.78

Finding the Fourth Proportional to 66,062.30, 99,116.49 and 28,130.78

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Solution

The fourth proportional to 66,062.30, 99,116.49 and 28,130.78 is: 42,205.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,062.30 : 99,116.49 = 28,130.78 : x
  2. Step 2: Convert to fraction form
    66,062.30/99,116.49 = 28,130.78/x
  3. Step 3: Cross multiply
    66,062.30x = 99,116.49 × 28,130.78
  4. Step 4: Simplify right side
    66,062.30x = 2,788,224,174.56
  5. Step 5: Solve for x
    x = 2,788,224,174.56/66,062.30
  6. Step 6: Final answer
    x = 42,205.98

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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.