Home / 85,307.22-127,975.87-29,134.16

Finding the Fourth Proportional to 85,307.22, 127,975.87 and 29,134.16

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Solution

The fourth proportional to 85,307.22, 127,975.87 and 29,134.16 is: 43,706.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,307.22 : 127,975.87 = 29,134.16 : x
  2. Step 2: Convert to fraction form
    85,307.22/127,975.87 = 29,134.16/x
  3. Step 3: Cross multiply
    85,307.22x = 127,975.87 × 29,134.16
  4. Step 4: Simplify right side
    85,307.22x = 3,728,469,881.02
  5. Step 5: Solve for x
    x = 3,728,469,881.02/85,307.22
  6. Step 6: Final answer
    x = 43,706.38

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1.5x scale

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.