Home / 74,453.32-111,700.82-30,111.20

Finding the Fourth Proportional to 74,453.32, 111,700.82 and 30,111.20

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Solution

The fourth proportional to 74,453.32, 111,700.82 and 30,111.20 is: 45,175.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,453.32 : 111,700.82 = 30,111.20 : x
  2. Step 2: Convert to fraction form
    74,453.32/111,700.82 = 30,111.20/x
  3. Step 3: Cross multiply
    74,453.32x = 111,700.82 × 30,111.20
  4. Step 4: Simplify right side
    74,453.32x = 3,363,445,731.18
  5. Step 5: Solve for x
    x = 3,363,445,731.18/74,453.32
  6. Step 6: Final answer
    x = 45,175.23

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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.