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Finding the Fourth Proportional to 66,417.94, 91,658.50 and 40,941.14

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Solution

The fourth proportional to 66,417.94, 91,658.50 and 40,941.14 is: 56,499.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,417.94 : 91,658.50 = 40,941.14 : x
  2. Step 2: Convert to fraction form
    66,417.94/91,658.50 = 40,941.14/x
  3. Step 3: Cross multiply
    66,417.94x = 91,658.50 × 40,941.14
  4. Step 4: Simplify right side
    66,417.94x = 3,752,603,480.69
  5. Step 5: Solve for x
    x = 3,752,603,480.69/66,417.94
  6. Step 6: Final answer
    x = 56,499.85

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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.