Home / 74,455.12-111,681.76-21,862.72

Finding the Fourth Proportional to 74,455.12, 111,681.76 and 21,862.72

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Solution

The fourth proportional to 74,455.12, 111,681.76 and 21,862.72 is: 32,793.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,455.12 : 111,681.76 = 21,862.72 : x
  2. Step 2: Convert to fraction form
    74,455.12/111,681.76 = 21,862.72/x
  3. Step 3: Cross multiply
    74,455.12x = 111,681.76 × 21,862.72
  4. Step 4: Simplify right side
    74,455.12x = 2,441,667,047.99
  5. Step 5: Solve for x
    x = 2,441,667,047.99/74,455.12
  6. Step 6: Final answer
    x = 32,793.81

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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.