Home / 40,940.10-61,410.15-40,421.70

Finding the Fourth Proportional to 40,940.10, 61,410.15 and 40,421.70

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Solution

The fourth proportional to 40,940.10, 61,410.15 and 40,421.70 is: 60,632.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,940.10 : 61,410.15 = 40,421.70 : x
  2. Step 2: Convert to fraction form
    40,940.10/61,410.15 = 40,421.70/x
  3. Step 3: Cross multiply
    40,940.10x = 61,410.15 × 40,421.70
  4. Step 4: Simplify right side
    40,940.10x = 2,482,302,660.26
  5. Step 5: Solve for x
    x = 2,482,302,660.26/40,940.10
  6. Step 6: Final answer
    x = 60,632.55

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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.