Home / 55,069.12-82,574.40-21,787.84

Finding the Fourth Proportional to 55,069.12, 82,574.40 and 21,787.84

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Solution

The fourth proportional to 55,069.12, 82,574.40 and 21,787.84 is: 32,670.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,069.12 : 82,574.40 = 21,787.84 : x
  2. Step 2: Convert to fraction form
    55,069.12/82,574.40 = 21,787.84/x
  3. Step 3: Cross multiply
    55,069.12x = 82,574.40 × 21,787.84
  4. Step 4: Simplify right side
    55,069.12x = 1,799,117,815.30
  5. Step 5: Solve for x
    x = 1,799,117,815.30/55,069.12
  6. Step 6: Final answer
    x = 32,670.18

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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.