Home / 51,322.36-76,925.18-21,721.72

Finding the Fourth Proportional to 51,322.36, 76,925.18 and 21,721.72

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Solution

The fourth proportional to 51,322.36, 76,925.18 and 21,721.72 is: 32,557.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,322.36 : 76,925.18 = 21,721.72 : x
  2. Step 2: Convert to fraction form
    51,322.36/76,925.18 = 21,721.72/x
  3. Step 3: Cross multiply
    51,322.36x = 76,925.18 × 21,721.72
  4. Step 4: Simplify right side
    51,322.36x = 1,670,947,220.91
  5. Step 5: Solve for x
    x = 1,670,947,220.91/51,322.36
  6. Step 6: Final answer
    x = 32,557.88

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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.