Home / 66,966.34-92,416.44-40,103.71

Finding the Fourth Proportional to 66,966.34, 92,416.44 and 40,103.71

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Solution

The fourth proportional to 66,966.34, 92,416.44 and 40,103.71 is: 55,344.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,966.34 : 92,416.44 = 40,103.71 : x
  2. Step 2: Convert to fraction form
    66,966.34/92,416.44 = 40,103.71/x
  3. Step 3: Cross multiply
    66,966.34x = 92,416.44 × 40,103.71
  4. Step 4: Simplify right side
    66,966.34x = 3,706,242,108.99
  5. Step 5: Solve for x
    x = 3,706,242,108.99/66,966.34
  6. Step 6: Final answer
    x = 55,344.85

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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.