Home / 66,438.10-91,685.00-36,223.93

Finding the Fourth Proportional to 66,438.10, 91,685.00 and 36,223.93

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Solution

The fourth proportional to 66,438.10, 91,685.00 and 36,223.93 is: 49,989.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,438.10 : 91,685.00 = 36,223.93 : x
  2. Step 2: Convert to fraction form
    66,438.10/91,685.00 = 36,223.93/x
  3. Step 3: Cross multiply
    66,438.10x = 91,685.00 × 36,223.93
  4. Step 4: Simplify right side
    66,438.10x = 3,321,190,679.64
  5. Step 5: Solve for x
    x = 3,321,190,679.64/66,438.10
  6. Step 6: Final answer
    x = 49,989.25

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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.