Home / 66,950.40-92,394.45-40,087.78

Finding the Fourth Proportional to 66,950.40, 92,394.45 and 40,087.78

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Solution

The fourth proportional to 66,950.40, 92,394.45 and 40,087.78 is: 55,322.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,950.40 : 92,394.45 = 40,087.78 : x
  2. Step 2: Convert to fraction form
    66,950.40/92,394.45 = 40,087.78/x
  3. Step 3: Cross multiply
    66,950.40x = 92,394.45 × 40,087.78
  4. Step 4: Simplify right side
    66,950.40x = 3,703,888,184.38
  5. Step 5: Solve for x
    x = 3,703,888,184.38/66,950.40
  6. Step 6: Final answer
    x = 55,322.87

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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.