Home / 68,715.60-94,825.62-40,423.20

Finding the Fourth Proportional to 68,715.60, 94,825.62 and 40,423.20

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Solution

The fourth proportional to 68,715.60, 94,825.62 and 40,423.20 is: 55,782.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,715.60 : 94,825.62 = 40,423.20 : x
  2. Step 2: Convert to fraction form
    68,715.60/94,825.62 = 40,423.20/x
  3. Step 3: Cross multiply
    68,715.60x = 94,825.62 × 40,423.20
  4. Step 4: Simplify right side
    68,715.60x = 3,833,155,002.38
  5. Step 5: Solve for x
    x = 3,833,155,002.38/68,715.60
  6. Step 6: Final answer
    x = 55,782.89

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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.