Home / 74,012.18-110,314.70-69,808.58

Finding the Fourth Proportional to 74,012.18, 110,314.70 and 69,808.58

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Solution

The fourth proportional to 74,012.18, 110,314.70 and 69,808.58 is: 104,049.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,012.18 : 110,314.70 = 69,808.58 : x
  2. Step 2: Convert to fraction form
    74,012.18/110,314.70 = 69,808.58/x
  3. Step 3: Cross multiply
    74,012.18x = 110,314.70 × 69,808.58
  4. Step 4: Simplify right side
    74,012.18x = 7,700,912,334.97
  5. Step 5: Solve for x
    x = 7,700,912,334.97/74,012.18
  6. Step 6: Final answer
    x = 104,049.26

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.