Home / 40,720.78-61,088.46-20,994.04

Finding the Fourth Proportional to 40,720.78, 61,088.46 and 20,994.04

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Solution

The fourth proportional to 40,720.78, 61,088.46 and 20,994.04 is: 31,494.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,720.78 : 61,088.46 = 20,994.04 : x
  2. Step 2: Convert to fraction form
    40,720.78/61,088.46 = 20,994.04/x
  3. Step 3: Cross multiply
    40,720.78x = 61,088.46 × 20,994.04
  4. Step 4: Simplify right side
    40,720.78x = 1,282,493,572.78
  5. Step 5: Solve for x
    x = 1,282,493,572.78/40,720.78
  6. Step 6: Final answer
    x = 31,494.82

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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.