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Finding the Fourth Proportional to 51,495.54, 77,275.80 and 21,913.35

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Solution

The fourth proportional to 51,495.54, 77,275.80 and 21,913.35 is: 32,883.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,495.54 : 77,275.80 = 21,913.35 : x
  2. Step 2: Convert to fraction form
    51,495.54/77,275.80 = 21,913.35/x
  3. Step 3: Cross multiply
    51,495.54x = 77,275.80 × 21,913.35
  4. Step 4: Simplify right side
    51,495.54x = 1,693,371,651.93
  5. Step 5: Solve for x
    x = 1,693,371,651.93/51,495.54
  6. Step 6: Final answer
    x = 32,883.85

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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.