Home / 66,440.46-91,686.14-36,225.84

Finding the Fourth Proportional to 66,440.46, 91,686.14 and 36,225.84

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Solution

The fourth proportional to 66,440.46, 91,686.14 and 36,225.84 is: 49,990.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,440.46 : 91,686.14 = 36,225.84 : x
  2. Step 2: Convert to fraction form
    66,440.46/91,686.14 = 36,225.84/x
  3. Step 3: Cross multiply
    66,440.46x = 91,686.14 × 36,225.84
  4. Step 4: Simplify right side
    66,440.46x = 3,321,406,798.30
  5. Step 5: Solve for x
    x = 3,321,406,798.30/66,440.46
  6. Step 6: Final answer
    x = 49,990.73

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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.