Home / 74,302.20-111,453.30-60,305.40

Finding the Fourth Proportional to 74,302.20, 111,453.30 and 60,305.40

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Solution

The fourth proportional to 74,302.20, 111,453.30 and 60,305.40 is: 90,458.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,302.20 : 111,453.30 = 60,305.40 : x
  2. Step 2: Convert to fraction form
    74,302.20/111,453.30 = 60,305.40/x
  3. Step 3: Cross multiply
    74,302.20x = 111,453.30 × 60,305.40
  4. Step 4: Simplify right side
    74,302.20x = 6,721,235,837.82
  5. Step 5: Solve for x
    x = 6,721,235,837.82/74,302.20
  6. Step 6: Final answer
    x = 90,458.10

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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.