Home / 68,582.63-102,780.53-38,611.17

Finding the Fourth Proportional to 68,582.63, 102,780.53 and 38,611.17

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Solution

The fourth proportional to 68,582.63, 102,780.53 and 38,611.17 is: 57,864.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,582.63 : 102,780.53 = 38,611.17 : x
  2. Step 2: Convert to fraction form
    68,582.63/102,780.53 = 38,611.17/x
  3. Step 3: Cross multiply
    68,582.63x = 102,780.53 × 38,611.17
  4. Step 4: Simplify right side
    68,582.63x = 3,968,476,323.46
  5. Step 5: Solve for x
    x = 3,968,476,323.46/68,582.63
  6. Step 6: Final answer
    x = 57,864.16

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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.