Home / 84,941.04-127,438.12-66,284.72

Finding the Fourth Proportional to 84,941.04, 127,438.12 and 66,284.72

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Solution

The fourth proportional to 84,941.04, 127,438.12 and 66,284.72 is: 99,447.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,941.04 : 127,438.12 = 66,284.72 : x
  2. Step 2: Convert to fraction form
    84,941.04/127,438.12 = 66,284.72/x
  3. Step 3: Cross multiply
    84,941.04x = 127,438.12 × 66,284.72
  4. Step 4: Simplify right side
    84,941.04x = 8,447,200,101.53
  5. Step 5: Solve for x
    x = 8,447,200,101.53/84,941.04
  6. Step 6: Final answer
    x = 99,447.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.