Home / 76,868.40-114,538.44-68,484

Finding the Fourth Proportional to 76,868.40, 114,538.44 and 68,484

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Solution

The fourth proportional to 76,868.40, 114,538.44 and 68,484 is: 102,045.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,868.40 : 114,538.44 = 68,484 : x
  2. Step 2: Convert to fraction form
    76,868.40/114,538.44 = 68,484/x
  3. Step 3: Cross multiply
    76,868.40x = 114,538.44 × 68,484
  4. Step 4: Simplify right side
    76,868.40x = 7,844,050,524.96
  5. Step 5: Solve for x
    x = 7,844,050,524.96/76,868.40
  6. Step 6: Final answer
    x = 102,045.19

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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.