Home / 40,188.15-60,282.54-10,605.78

Finding the Fourth Proportional to 40,188.15, 60,282.54 and 10,605.78

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Solution

The fourth proportional to 40,188.15, 60,282.54 and 10,605.78 is: 15,908.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,188.15 : 60,282.54 = 10,605.78 : x
  2. Step 2: Convert to fraction form
    40,188.15/60,282.54 = 10,605.78/x
  3. Step 3: Cross multiply
    40,188.15x = 60,282.54 × 10,605.78
  4. Step 4: Simplify right side
    40,188.15x = 639,343,357.08
  5. Step 5: Solve for x
    x = 639,343,357.08/40,188.15
  6. Step 6: Final answer
    x = 15,908.75

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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.