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Finding the Fourth Proportional to 66,010.80, 99,016.20 and 48,514.80

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Solution

The fourth proportional to 66,010.80, 99,016.20 and 48,514.80 is: 72,772.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,010.80 : 99,016.20 = 48,514.80 : x
  2. Step 2: Convert to fraction form
    66,010.80/99,016.20 = 48,514.80/x
  3. Step 3: Cross multiply
    66,010.80x = 99,016.20 × 48,514.80
  4. Step 4: Simplify right side
    66,010.80x = 4,803,751,139.76
  5. Step 5: Solve for x
    x = 4,803,751,139.76/66,010.80
  6. Step 6: Final answer
    x = 72,772.20

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1.5x scale

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.