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Finding the Fourth Proportional to 65,295.36, 90,107.28 and 35,487.36

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Solution

The fourth proportional to 65,295.36, 90,107.28 and 35,487.36 is: 48,972.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,295.36 : 90,107.28 = 35,487.36 : x
  2. Step 2: Convert to fraction form
    65,295.36/90,107.28 = 35,487.36/x
  3. Step 3: Cross multiply
    65,295.36x = 90,107.28 × 35,487.36
  4. Step 4: Simplify right side
    65,295.36x = 3,197,669,483.98
  5. Step 5: Solve for x
    x = 3,197,669,483.98/65,295.36
  6. Step 6: Final answer
    x = 48,972.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.