Home / 54,690.96-81,977.84-39,061.20

Finding the Fourth Proportional to 54,690.96, 81,977.84 and 39,061.20

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Solution

The fourth proportional to 54,690.96, 81,977.84 and 39,061.20 is: 58,549.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,690.96 : 81,977.84 = 39,061.20 : x
  2. Step 2: Convert to fraction form
    54,690.96/81,977.84 = 39,061.20/x
  3. Step 3: Cross multiply
    54,690.96x = 81,977.84 × 39,061.20
  4. Step 4: Simplify right side
    54,690.96x = 3,202,152,803.81
  5. Step 5: Solve for x
    x = 3,202,152,803.81/54,690.96
  6. Step 6: Final answer
    x = 58,549.95

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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.