Home / 74,442.32-111,646.20-21,837.68

Finding the Fourth Proportional to 74,442.32, 111,646.20 and 21,837.68

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Solution

The fourth proportional to 74,442.32, 111,646.20 and 21,837.68 is: 32,751.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,442.32 : 111,646.20 = 21,837.68 : x
  2. Step 2: Convert to fraction form
    74,442.32/111,646.20 = 21,837.68/x
  3. Step 3: Cross multiply
    74,442.32x = 111,646.20 × 21,837.68
  4. Step 4: Simplify right side
    74,442.32x = 2,438,093,988.82
  5. Step 5: Solve for x
    x = 2,438,093,988.82/74,442.32
  6. Step 6: Final answer
    x = 32,751.45

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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.