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Finding the Fourth Proportional to 69,138.04, 95,408.92 and 38,510.92

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Solution

The fourth proportional to 69,138.04, 95,408.92 and 38,510.92 is: 53,144.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,138.04 : 95,408.92 = 38,510.92 : x
  2. Step 2: Convert to fraction form
    69,138.04/95,408.92 = 38,510.92/x
  3. Step 3: Cross multiply
    69,138.04x = 95,408.92 × 38,510.92
  4. Step 4: Simplify right side
    69,138.04x = 3,674,285,285.41
  5. Step 5: Solve for x
    x = 3,674,285,285.41/69,138.04
  6. Step 6: Final answer
    x = 53,144.19

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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.