Home / 217,859.28-326,811.64-60,087.76

Finding the Fourth Proportional to 217,859.28, 326,811.64 and 60,087.76

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Solution

The fourth proportional to 217,859.28, 326,811.64 and 60,087.76 is: 90,137.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,859.28 : 326,811.64 = 60,087.76 : x
  2. Step 2: Convert to fraction form
    217,859.28/326,811.64 = 60,087.76/x
  3. Step 3: Cross multiply
    217,859.28x = 326,811.64 × 60,087.76
  4. Step 4: Simplify right side
    217,859.28x = 19,637,379,389.53
  5. Step 5: Solve for x
    x = 19,637,379,389.53/217,859.28
  6. Step 6: Final answer
    x = 90,137.91

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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.