Home / 48,408.20-72,612.30-47,112.20

Finding the Fourth Proportional to 48,408.20, 72,612.30 and 47,112.20

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Solution

The fourth proportional to 48,408.20, 72,612.30 and 47,112.20 is: 70,668.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,408.20 : 72,612.30 = 47,112.20 : x
  2. Step 2: Convert to fraction form
    48,408.20/72,612.30 = 47,112.20/x
  3. Step 3: Cross multiply
    48,408.20x = 72,612.30 × 47,112.20
  4. Step 4: Simplify right side
    48,408.20x = 3,420,925,200.06
  5. Step 5: Solve for x
    x = 3,420,925,200.06/48,408.20
  6. Step 6: Final answer
    x = 70,668.30

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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.