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Finding the Fourth Proportional to 61,362.32, 92,062.80 and 21,918.56

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Solution

The fourth proportional to 61,362.32, 92,062.80 and 21,918.56 is: 32,884.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,362.32 : 92,062.80 = 21,918.56 : x
  2. Step 2: Convert to fraction form
    61,362.32/92,062.80 = 21,918.56/x
  3. Step 3: Cross multiply
    61,362.32x = 92,062.80 × 21,918.56
  4. Step 4: Simplify right side
    61,362.32x = 2,017,884,005.57
  5. Step 5: Solve for x
    x = 2,017,884,005.57/61,362.32
  6. Step 6: Final answer
    x = 32,884.74

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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.