Home / 74,438.68-111,656.18-18,278.32

Finding the Fourth Proportional to 74,438.68, 111,656.18 and 18,278.32

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Solution

The fourth proportional to 74,438.68, 111,656.18 and 18,278.32 is: 27,417.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,438.68 : 111,656.18 = 18,278.32 : x
  2. Step 2: Convert to fraction form
    74,438.68/111,656.18 = 18,278.32/x
  3. Step 3: Cross multiply
    74,438.68x = 111,656.18 × 18,278.32
  4. Step 4: Simplify right side
    74,438.68x = 2,040,887,296.63
  5. Step 5: Solve for x
    x = 2,040,887,296.63/74,438.68
  6. Step 6: Final answer
    x = 27,417.03

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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.