Home / 48,658.40-72,901.20-30,168.80

Finding the Fourth Proportional to 48,658.40, 72,901.20 and 30,168.80

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Solution

The fourth proportional to 48,658.40, 72,901.20 and 30,168.80 is: 45,199.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,658.40 : 72,901.20 = 30,168.80 : x
  2. Step 2: Convert to fraction form
    48,658.40/72,901.20 = 30,168.80/x
  3. Step 3: Cross multiply
    48,658.40x = 72,901.20 × 30,168.80
  4. Step 4: Simplify right side
    48,658.40x = 2,199,341,722.56
  5. Step 5: Solve for x
    x = 2,199,341,722.56/48,658.40
  6. Step 6: Final answer
    x = 45,199.63

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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.