Home / 51,280.61-76,929.10-21,698.69

Finding the Fourth Proportional to 51,280.61, 76,929.10 and 21,698.69

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Solution

The fourth proportional to 51,280.61, 76,929.10 and 21,698.69 is: 32,551.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,280.61 : 76,929.10 = 21,698.69 : x
  2. Step 2: Convert to fraction form
    51,280.61/76,929.10 = 21,698.69/x
  3. Step 3: Cross multiply
    51,280.61x = 76,929.10 × 21,698.69
  4. Step 4: Simplify right side
    51,280.61x = 1,669,260,253.99
  5. Step 5: Solve for x
    x = 1,669,260,253.99/51,280.61
  6. Step 6: Final answer
    x = 32,551.49

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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.