Home / 61,931.38-92,921.69-19,817.95

Finding the Fourth Proportional to 61,931.38, 92,921.69 and 19,817.95

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Solution

The fourth proportional to 61,931.38, 92,921.69 and 19,817.95 is: 29,734.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,931.38 : 92,921.69 = 19,817.95 : x
  2. Step 2: Convert to fraction form
    61,931.38/92,921.69 = 19,817.95/x
  3. Step 3: Cross multiply
    61,931.38x = 92,921.69 × 19,817.95
  4. Step 4: Simplify right side
    61,931.38x = 1,841,517,406.34
  5. Step 5: Solve for x
    x = 1,841,517,406.34/61,931.38
  6. Step 6: Final answer
    x = 29,734.80

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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.