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Finding the Fourth Proportional to 61,337.72, 92,016.30 and 19,775

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Solution

The fourth proportional to 61,337.72, 92,016.30 and 19,775 is: 29,665.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,337.72 : 92,016.30 = 19,775 : x
  2. Step 2: Convert to fraction form
    61,337.72/92,016.30 = 19,775/x
  3. Step 3: Cross multiply
    61,337.72x = 92,016.30 × 19,775
  4. Step 4: Simplify right side
    61,337.72x = 1,819,622,332.50
  5. Step 5: Solve for x
    x = 1,819,622,332.50/61,337.72
  6. Step 6: Final answer
    x = 29,665.63

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1.5x scale

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.