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Finding the Fourth Proportional to 66,001.90, 99,002.85 and 63,669.10

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Solution

The fourth proportional to 66,001.90, 99,002.85 and 63,669.10 is: 95,503.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,001.90 : 99,002.85 = 63,669.10 : x
  2. Step 2: Convert to fraction form
    66,001.90/99,002.85 = 63,669.10/x
  3. Step 3: Cross multiply
    66,001.90x = 99,002.85 × 63,669.10
  4. Step 4: Simplify right side
    66,001.90x = 6,303,422,356.94
  5. Step 5: Solve for x
    x = 6,303,422,356.94/66,001.90
  6. Step 6: Final answer
    x = 95,503.65

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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.