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Finding the Fourth Proportional to 66,004.80, 99,007.20 and 48,508.80

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Solution

The fourth proportional to 66,004.80, 99,007.20 and 48,508.80 is: 72,763.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,004.80 : 99,007.20 = 48,508.80 : x
  2. Step 2: Convert to fraction form
    66,004.80/99,007.20 = 48,508.80/x
  3. Step 3: Cross multiply
    66,004.80x = 99,007.20 × 48,508.80
  4. Step 4: Simplify right side
    66,004.80x = 4,802,720,463.36
  5. Step 5: Solve for x
    x = 4,802,720,463.36/66,004.80
  6. Step 6: Final answer
    x = 72,763.20

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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.