Home / 54,601.20-81,885.28-21,312.24

Finding the Fourth Proportional to 54,601.20, 81,885.28 and 21,312.24

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Solution

The fourth proportional to 54,601.20, 81,885.28 and 21,312.24 is: 31,961.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,601.20 : 81,885.28 = 21,312.24 : x
  2. Step 2: Convert to fraction form
    54,601.20/81,885.28 = 21,312.24/x
  3. Step 3: Cross multiply
    54,601.20x = 81,885.28 × 21,312.24
  4. Step 4: Simplify right side
    54,601.20x = 1,745,158,739.83
  5. Step 5: Solve for x
    x = 1,745,158,739.83/54,601.20
  6. Step 6: Final answer
    x = 31,961.91

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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.