Home / 48,138.30-72,130.65-40,304.70

Finding the Fourth Proportional to 48,138.30, 72,130.65 and 40,304.70

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Solution

The fourth proportional to 48,138.30, 72,130.65 and 40,304.70 is: 60,392.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,138.30 : 72,130.65 = 40,304.70 : x
  2. Step 2: Convert to fraction form
    48,138.30/72,130.65 = 40,304.70/x
  3. Step 3: Cross multiply
    48,138.30x = 72,130.65 × 40,304.70
  4. Step 4: Simplify right side
    48,138.30x = 2,907,204,209.06
  5. Step 5: Solve for x
    x = 2,907,204,209.06/48,138.30
  6. Step 6: Final answer
    x = 60,392.75

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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.