Home / 51,276.08-76,919.61-21,696.91

Finding the Fourth Proportional to 51,276.08, 76,919.61 and 21,696.91

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Solution

The fourth proportional to 51,276.08, 76,919.61 and 21,696.91 is: 32,547.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,276.08 : 76,919.61 = 21,696.91 : x
  2. Step 2: Convert to fraction form
    51,276.08/76,919.61 = 21,696.91/x
  3. Step 3: Cross multiply
    51,276.08x = 76,919.61 × 21,696.91
  4. Step 4: Simplify right side
    51,276.08x = 1,668,917,855.41
  5. Step 5: Solve for x
    x = 1,668,917,855.41/51,276.08
  6. Step 6: Final answer
    x = 32,547.69

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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.