Home / 66,146.90-99,234.02-21,776.32

Finding the Fourth Proportional to 66,146.90, 99,234.02 and 21,776.32

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Solution

The fourth proportional to 66,146.90, 99,234.02 and 21,776.32 is: 32,668.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,146.90 : 99,234.02 = 21,776.32 : x
  2. Step 2: Convert to fraction form
    66,146.90/99,234.02 = 21,776.32/x
  3. Step 3: Cross multiply
    66,146.90x = 99,234.02 × 21,776.32
  4. Step 4: Simplify right side
    66,146.90x = 2,160,951,580.76
  5. Step 5: Solve for x
    x = 2,160,951,580.76/66,146.90
  6. Step 6: Final answer
    x = 32,668.98

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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.