Home / 74,269.30-111,402.10-21,679.24

Finding the Fourth Proportional to 74,269.30, 111,402.10 and 21,679.24

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Solution

The fourth proportional to 74,269.30, 111,402.10 and 21,679.24 is: 32,518.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,269.30 : 111,402.10 = 21,679.24 : x
  2. Step 2: Convert to fraction form
    74,269.30/111,402.10 = 21,679.24/x
  3. Step 3: Cross multiply
    74,269.30x = 111,402.10 × 21,679.24
  4. Step 4: Simplify right side
    74,269.30x = 2,415,112,862.40
  5. Step 5: Solve for x
    x = 2,415,112,862.40/74,269.30
  6. Step 6: Final answer
    x = 32,518.32

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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.