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Finding the Fourth Proportional to 40,612.80, 60,897.60 and 17,212.80

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Solution

The fourth proportional to 40,612.80, 60,897.60 and 17,212.80 is: 25,810.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,612.80 : 60,897.60 = 17,212.80 : x
  2. Step 2: Convert to fraction form
    40,612.80/60,897.60 = 17,212.80/x
  3. Step 3: Cross multiply
    40,612.80x = 60,897.60 × 17,212.80
  4. Step 4: Simplify right side
    40,612.80x = 1,048,218,209.28
  5. Step 5: Solve for x
    x = 1,048,218,209.28/40,612.80
  6. Step 6: Final answer
    x = 25,810.05

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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.