Home / 45,703.76-68,579.55-18,706.15

Finding the Fourth Proportional to 45,703.76, 68,579.55 and 18,706.15

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Solution

The fourth proportional to 45,703.76, 68,579.55 and 18,706.15 is: 28,069.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,703.76 : 68,579.55 = 18,706.15 : x
  2. Step 2: Convert to fraction form
    45,703.76/68,579.55 = 18,706.15/x
  3. Step 3: Cross multiply
    45,703.76x = 68,579.55 × 18,706.15
  4. Step 4: Simplify right side
    45,703.76x = 1,282,859,177.78
  5. Step 5: Solve for x
    x = 1,282,859,177.78/45,703.76
  6. Step 6: Final answer
    x = 28,069.01

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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.