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Finding the Fourth Proportional to 72,441.70, 108,662.55 and 60,000.10

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Solution

The fourth proportional to 72,441.70, 108,662.55 and 60,000.10 is: 90,000.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,441.70 : 108,662.55 = 60,000.10 : x
  2. Step 2: Convert to fraction form
    72,441.70/108,662.55 = 60,000.10/x
  3. Step 3: Cross multiply
    72,441.70x = 108,662.55 × 60,000.10
  4. Step 4: Simplify right side
    72,441.70x = 6,519,763,866.26
  5. Step 5: Solve for x
    x = 6,519,763,866.26/72,441.70
  6. Step 6: Final answer
    x = 90,000.15

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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.