Home / 45,823.12-68,734.62-12,543.46

Finding the Fourth Proportional to 45,823.12, 68,734.62 and 12,543.46

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Solution

The fourth proportional to 45,823.12, 68,734.62 and 12,543.46 is: 18,815.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,823.12 : 68,734.62 = 12,543.46 : x
  2. Step 2: Convert to fraction form
    45,823.12/68,734.62 = 12,543.46/x
  3. Step 3: Cross multiply
    45,823.12x = 68,734.62 × 12,543.46
  4. Step 4: Simplify right side
    45,823.12x = 862,169,956.59
  5. Step 5: Solve for x
    x = 862,169,956.59/45,823.12
  6. Step 6: Final answer
    x = 18,815.17

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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.