Home / 66,761.14-92,124.12-39,898.30

Finding the Fourth Proportional to 66,761.14, 92,124.12 and 39,898.30

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Solution

The fourth proportional to 66,761.14, 92,124.12 and 39,898.30 is: 55,055.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,761.14 : 92,124.12 = 39,898.30 : x
  2. Step 2: Convert to fraction form
    66,761.14/92,124.12 = 39,898.30/x
  3. Step 3: Cross multiply
    66,761.14x = 92,124.12 × 39,898.30
  4. Step 4: Simplify right side
    66,761.14x = 3,675,595,777.00
  5. Step 5: Solve for x
    x = 3,675,595,777.00/66,761.14
  6. Step 6: Final answer
    x = 55,055.92

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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.