Home / 74,765.08-112,115.06-21,445.28

Finding the Fourth Proportional to 74,765.08, 112,115.06 and 21,445.28

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Solution

The fourth proportional to 74,765.08, 112,115.06 and 21,445.28 is: 32,158.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,765.08 : 112,115.06 = 21,445.28 : x
  2. Step 2: Convert to fraction form
    74,765.08/112,115.06 = 21,445.28/x
  3. Step 3: Cross multiply
    74,765.08x = 112,115.06 × 21,445.28
  4. Step 4: Simplify right side
    74,765.08x = 2,404,338,853.92
  5. Step 5: Solve for x
    x = 2,404,338,853.92/74,765.08
  6. Step 6: Final answer
    x = 32,158.58

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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.