Home / 68,689.08-94,778.10-40,384.44

Finding the Fourth Proportional to 68,689.08, 94,778.10 and 40,384.44

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Solution

The fourth proportional to 68,689.08, 94,778.10 and 40,384.44 is: 55,722.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,689.08 : 94,778.10 = 40,384.44 : x
  2. Step 2: Convert to fraction form
    68,689.08/94,778.10 = 40,384.44/x
  3. Step 3: Cross multiply
    68,689.08x = 94,778.10 × 40,384.44
  4. Step 4: Simplify right side
    68,689.08x = 3,827,560,492.76
  5. Step 5: Solve for x
    x = 3,827,560,492.76/68,689.08
  6. Step 6: Final answer
    x = 55,722.98

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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.