Home / 48,621.60-72,881.28-20,535.84

Finding the Fourth Proportional to 48,621.60, 72,881.28 and 20,535.84

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Solution

The fourth proportional to 48,621.60, 72,881.28 and 20,535.84 is: 30,782.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,621.60 : 72,881.28 = 20,535.84 : x
  2. Step 2: Convert to fraction form
    48,621.60/72,881.28 = 20,535.84/x
  3. Step 3: Cross multiply
    48,621.60x = 72,881.28 × 20,535.84
  4. Step 4: Simplify right side
    48,621.60x = 1,496,678,305.08
  5. Step 5: Solve for x
    x = 1,496,678,305.08/48,621.60
  6. Step 6: Final answer
    x = 30,782.17

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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.