Home / 66,748.14-92,106.18-39,885.30

Finding the Fourth Proportional to 66,748.14, 92,106.18 and 39,885.30

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Solution

The fourth proportional to 66,748.14, 92,106.18 and 39,885.30 is: 55,037.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,748.14 : 92,106.18 = 39,885.30 : x
  2. Step 2: Convert to fraction form
    66,748.14/92,106.18 = 39,885.30/x
  3. Step 3: Cross multiply
    66,748.14x = 92,106.18 × 39,885.30
  4. Step 4: Simplify right side
    66,748.14x = 3,673,682,621.15
  5. Step 5: Solve for x
    x = 3,673,682,621.15/66,748.14
  6. Step 6: Final answer
    x = 55,037.98

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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.