Home / 67,838.18-101,762.13-17,917.78

Finding the Fourth Proportional to 67,838.18, 101,762.13 and 17,917.78

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Solution

The fourth proportional to 67,838.18, 101,762.13 and 17,917.78 is: 26,877.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,838.18 : 101,762.13 = 17,917.78 : x
  2. Step 2: Convert to fraction form
    67,838.18/101,762.13 = 17,917.78/x
  3. Step 3: Cross multiply
    67,838.18x = 101,762.13 × 17,917.78
  4. Step 4: Simplify right side
    67,838.18x = 1,823,351,457.67
  5. Step 5: Solve for x
    x = 1,823,351,457.67/67,838.18
  6. Step 6: Final answer
    x = 26,877.95

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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.