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Finding the Fourth Proportional to 69,130.35, 95,401.67 and 38,916.77

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Solution

The fourth proportional to 69,130.35, 95,401.67 and 38,916.77 is: 53,706.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,130.35 : 95,401.67 = 38,916.77 : x
  2. Step 2: Convert to fraction form
    69,130.35/95,401.67 = 38,916.77/x
  3. Step 3: Cross multiply
    69,130.35x = 95,401.67 × 38,916.77
  4. Step 4: Simplify right side
    69,130.35x = 3,712,724,639.93
  5. Step 5: Solve for x
    x = 3,712,724,639.93/69,130.35
  6. Step 6: Final answer
    x = 53,706.15

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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.