Home / 68,389.60-94,339.72-40,089.84

Finding the Fourth Proportional to 68,389.60, 94,339.72 and 40,089.84

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Solution

The fourth proportional to 68,389.60, 94,339.72 and 40,089.84 is: 55,301.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,389.60 : 94,339.72 = 40,089.84 : x
  2. Step 2: Convert to fraction form
    68,389.60/94,339.72 = 40,089.84/x
  3. Step 3: Cross multiply
    68,389.60x = 94,339.72 × 40,089.84
  4. Step 4: Simplify right side
    68,389.60x = 3,782,064,280.44
  5. Step 5: Solve for x
    x = 3,782,064,280.44/68,389.60
  6. Step 6: Final answer
    x = 55,301.75

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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.