Home / 40,972.80-61,459.20-40,389.60

Finding the Fourth Proportional to 40,972.80, 61,459.20 and 40,389.60

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Solution

The fourth proportional to 40,972.80, 61,459.20 and 40,389.60 is: 60,584.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,972.80 : 61,459.20 = 40,389.60 : x
  2. Step 2: Convert to fraction form
    40,972.80/61,459.20 = 40,389.60/x
  3. Step 3: Cross multiply
    40,972.80x = 61,459.20 × 40,389.60
  4. Step 4: Simplify right side
    40,972.80x = 2,482,312,504.32
  5. Step 5: Solve for x
    x = 2,482,312,504.32/40,972.80
  6. Step 6: Final answer
    x = 60,584.40

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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.