Home / 51,071.24-76,636.80-21,486.80

Finding the Fourth Proportional to 51,071.24, 76,636.80 and 21,486.80

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Solution

The fourth proportional to 51,071.24, 76,636.80 and 21,486.80 is: 32,242.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,071.24 : 76,636.80 = 21,486.80 : x
  2. Step 2: Convert to fraction form
    51,071.24/76,636.80 = 21,486.80/x
  3. Step 3: Cross multiply
    51,071.24x = 76,636.80 × 21,486.80
  4. Step 4: Simplify right side
    51,071.24x = 1,646,679,594.24
  5. Step 5: Solve for x
    x = 1,646,679,594.24/51,071.24
  6. Step 6: Final answer
    x = 32,242.80

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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.