Home / 68,868.20-103,302.08-38,868.84

Finding the Fourth Proportional to 68,868.20, 103,302.08 and 38,868.84

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Solution

The fourth proportional to 68,868.20, 103,302.08 and 38,868.84 is: 58,303.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,868.20 : 103,302.08 = 38,868.84 : x
  2. Step 2: Convert to fraction form
    68,868.20/103,302.08 = 38,868.84/x
  3. Step 3: Cross multiply
    68,868.20x = 103,302.08 × 38,868.84
  4. Step 4: Simplify right side
    68,868.20x = 4,015,232,019.19
  5. Step 5: Solve for x
    x = 4,015,232,019.19/68,868.20
  6. Step 6: Final answer
    x = 58,303.14

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1.5x scale

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.