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Finding the Fourth Proportional to 40,302.66, 60,453.84 and 10,720.50

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Solution

The fourth proportional to 40,302.66, 60,453.84 and 10,720.50 is: 16,080.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,302.66 : 60,453.84 = 10,720.50 : x
  2. Step 2: Convert to fraction form
    40,302.66/60,453.84 = 10,720.50/x
  3. Step 3: Cross multiply
    40,302.66x = 60,453.84 × 10,720.50
  4. Step 4: Simplify right side
    40,302.66x = 648,095,391.72
  5. Step 5: Solve for x
    x = 648,095,391.72/40,302.66
  6. Step 6: Final answer
    x = 16,080.71

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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.