Home / 48,138.78-72,225.27-21,482.35

Finding the Fourth Proportional to 48,138.78, 72,225.27 and 21,482.35

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Solution

The fourth proportional to 48,138.78, 72,225.27 and 21,482.35 is: 32,231.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,138.78 : 72,225.27 = 21,482.35 : x
  2. Step 2: Convert to fraction form
    48,138.78/72,225.27 = 21,482.35/x
  3. Step 3: Cross multiply
    48,138.78x = 72,225.27 × 21,482.35
  4. Step 4: Simplify right side
    48,138.78x = 1,551,568,528.98
  5. Step 5: Solve for x
    x = 1,551,568,528.98/48,138.78
  6. Step 6: Final answer
    x = 32,231.16

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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.