Home / 45,787.40-68,659.63-17,720.71

Finding the Fourth Proportional to 45,787.40, 68,659.63 and 17,720.71

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Solution

The fourth proportional to 45,787.40, 68,659.63 and 17,720.71 is: 26,572.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,787.40 : 68,659.63 = 17,720.71 : x
  2. Step 2: Convert to fraction form
    45,787.40/68,659.63 = 17,720.71/x
  3. Step 3: Cross multiply
    45,787.40x = 68,659.63 × 17,720.71
  4. Step 4: Simplify right side
    45,787.40x = 1,216,697,391.94
  5. Step 5: Solve for x
    x = 1,216,697,391.94/45,787.40
  6. Step 6: Final answer
    x = 26,572.76

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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.