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Finding the Fourth Proportional to 68,679.42, 94,792.24 and 40,401.24

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Solution

The fourth proportional to 68,679.42, 94,792.24 and 40,401.24 is: 55,762.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,679.42 : 94,792.24 = 40,401.24 : x
  2. Step 2: Convert to fraction form
    68,679.42/94,792.24 = 40,401.24/x
  3. Step 3: Cross multiply
    68,679.42x = 94,792.24 × 40,401.24
  4. Step 4: Simplify right side
    68,679.42x = 3,829,724,038.38
  5. Step 5: Solve for x
    x = 3,829,724,038.38/68,679.42
  6. Step 6: Final answer
    x = 55,762.32

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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.