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Finding the Fourth Proportional to 40,326.40, 60,489.60 and 26,329.60

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Solution

The fourth proportional to 40,326.40, 60,489.60 and 26,329.60 is: 39,494.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,326.40 : 60,489.60 = 26,329.60 : x
  2. Step 2: Convert to fraction form
    40,326.40/60,489.60 = 26,329.60/x
  3. Step 3: Cross multiply
    40,326.40x = 60,489.60 × 26,329.60
  4. Step 4: Simplify right side
    40,326.40x = 1,592,666,972.16
  5. Step 5: Solve for x
    x = 1,592,666,972.16/40,326.40
  6. Step 6: Final answer
    x = 39,494.40

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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.