Home / 74,350.68-111,530.35-21,038.19

Finding the Fourth Proportional to 74,350.68, 111,530.35 and 21,038.19

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Solution

The fourth proportional to 74,350.68, 111,530.35 and 21,038.19 is: 31,558.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,350.68 : 111,530.35 = 21,038.19 : x
  2. Step 2: Convert to fraction form
    74,350.68/111,530.35 = 21,038.19/x
  3. Step 3: Cross multiply
    74,350.68x = 111,530.35 × 21,038.19
  4. Step 4: Simplify right side
    74,350.68x = 2,346,396,588.88
  5. Step 5: Solve for x
    x = 2,346,396,588.88/74,350.68
  6. Step 6: Final answer
    x = 31,558.51

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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.