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Finding the Fourth Proportional to 67,386.72, 101,088 and 27,938.88

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Solution

The fourth proportional to 67,386.72, 101,088 and 27,938.88 is: 41,911.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,386.72 : 101,088 = 27,938.88 : x
  2. Step 2: Convert to fraction form
    67,386.72/101,088 = 27,938.88/x
  3. Step 3: Cross multiply
    67,386.72x = 101,088 × 27,938.88
  4. Step 4: Simplify right side
    67,386.72x = 2,824,285,501.44
  5. Step 5: Solve for x
    x = 2,824,285,501.44/67,386.72
  6. Step 6: Final answer
    x = 41,911.60

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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.