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Finding the Fourth Proportional to 48,002.70, 72,004.05 and 30,485.10

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Solution

The fourth proportional to 48,002.70, 72,004.05 and 30,485.10 is: 45,727.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,002.70 : 72,004.05 = 30,485.10 : x
  2. Step 2: Convert to fraction form
    48,002.70/72,004.05 = 30,485.10/x
  3. Step 3: Cross multiply
    48,002.70x = 72,004.05 × 30,485.10
  4. Step 4: Simplify right side
    48,002.70x = 2,195,050,664.66
  5. Step 5: Solve for x
    x = 2,195,050,664.66/48,002.70
  6. Step 6: Final answer
    x = 45,727.65

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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.