Home / 45,191.79-67,787.35-13,601.72

Finding the Fourth Proportional to 45,191.79, 67,787.35 and 13,601.72

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Solution

The fourth proportional to 45,191.79, 67,787.35 and 13,601.72 is: 20,402.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,191.79 : 67,787.35 = 13,601.72 : x
  2. Step 2: Convert to fraction form
    45,191.79/67,787.35 = 13,601.72/x
  3. Step 3: Cross multiply
    45,191.79x = 67,787.35 × 13,601.72
  4. Step 4: Simplify right side
    45,191.79x = 922,024,435.50
  5. Step 5: Solve for x
    x = 922,024,435.50/45,191.79
  6. Step 6: Final answer
    x = 20,402.47

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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.