Home / 40,661.55-61,003.22-20,929.32

Finding the Fourth Proportional to 40,661.55, 61,003.22 and 20,929.32

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Solution

The fourth proportional to 40,661.55, 61,003.22 and 20,929.32 is: 31,399.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,661.55 : 61,003.22 = 20,929.32 : x
  2. Step 2: Convert to fraction form
    40,661.55/61,003.22 = 20,929.32/x
  3. Step 3: Cross multiply
    40,661.55x = 61,003.22 × 20,929.32
  4. Step 4: Simplify right side
    40,661.55x = 1,276,755,807.76
  5. Step 5: Solve for x
    x = 1,276,755,807.76/40,661.55
  6. Step 6: Final answer
    x = 31,399.59

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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.