Home / 91,059.74-136,602.09-31,072.13

Finding the Fourth Proportional to 91,059.74, 136,602.09 and 31,072.13

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Solution

The fourth proportional to 91,059.74, 136,602.09 and 31,072.13 is: 46,612.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,059.74 : 136,602.09 = 31,072.13 : x
  2. Step 2: Convert to fraction form
    91,059.74/136,602.09 = 31,072.13/x
  3. Step 3: Cross multiply
    91,059.74x = 136,602.09 × 31,072.13
  4. Step 4: Simplify right side
    91,059.74x = 4,244,517,898.75
  5. Step 5: Solve for x
    x = 4,244,517,898.75/91,059.74
  6. Step 6: Final answer
    x = 46,612.45

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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.