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Finding the Fourth Proportional to 52,458.84, 78,620.22 and 21,277.08

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Solution

The fourth proportional to 52,458.84, 78,620.22 and 21,277.08 is: 31,888.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,458.84 : 78,620.22 = 21,277.08 : x
  2. Step 2: Convert to fraction form
    52,458.84/78,620.22 = 21,277.08/x
  3. Step 3: Cross multiply
    52,458.84x = 78,620.22 × 21,277.08
  4. Step 4: Simplify right side
    52,458.84x = 1,672,808,710.56
  5. Step 5: Solve for x
    x = 1,672,808,710.56/52,458.84
  6. Step 6: Final answer
    x = 31,888.02

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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.