Home / 69,309.34-104,139.18-66,506.84

Finding the Fourth Proportional to 69,309.34, 104,139.18 and 66,506.84

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Solution

The fourth proportional to 69,309.34, 104,139.18 and 66,506.84 is: 99,928.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,309.34 : 104,139.18 = 66,506.84 : x
  2. Step 2: Convert to fraction form
    69,309.34/104,139.18 = 66,506.84/x
  3. Step 3: Cross multiply
    69,309.34x = 104,139.18 × 66,506.84
  4. Step 4: Simplify right side
    69,309.34x = 6,925,967,781.99
  5. Step 5: Solve for x
    x = 6,925,967,781.99/69,309.34
  6. Step 6: Final answer
    x = 99,928.35

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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.