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Finding the Fourth Proportional to 69,601.60, 104,402.40 and 51,886.90

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Solution

The fourth proportional to 69,601.60, 104,402.40 and 51,886.90 is: 77,830.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,601.60 : 104,402.40 = 51,886.90 : x
  2. Step 2: Convert to fraction form
    69,601.60/104,402.40 = 51,886.90/x
  3. Step 3: Cross multiply
    69,601.60x = 104,402.40 × 51,886.90
  4. Step 4: Simplify right side
    69,601.60x = 5,417,116,888.56
  5. Step 5: Solve for x
    x = 5,417,116,888.56/69,601.60
  6. Step 6: Final answer
    x = 77,830.35

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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.