Home / 51,929.88-77,865.64-21,525.72

Finding the Fourth Proportional to 51,929.88, 77,865.64 and 21,525.72

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Solution

The fourth proportional to 51,929.88, 77,865.64 and 21,525.72 is: 32,276.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,929.88 : 77,865.64 = 21,525.72 : x
  2. Step 2: Convert to fraction form
    51,929.88/77,865.64 = 21,525.72/x
  3. Step 3: Cross multiply
    51,929.88x = 77,865.64 × 21,525.72
  4. Step 4: Simplify right side
    51,929.88x = 1,676,113,964.26
  5. Step 5: Solve for x
    x = 1,676,113,964.26/51,929.88
  6. Step 6: Final answer
    x = 32,276.48

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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.