Home / 91,707.32-137,573.22-36,290.36

Finding the Fourth Proportional to 91,707.32, 137,573.22 and 36,290.36

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Solution

The fourth proportional to 91,707.32, 137,573.22 and 36,290.36 is: 54,440.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,707.32 : 137,573.22 = 36,290.36 : x
  2. Step 2: Convert to fraction form
    91,707.32/137,573.22 = 36,290.36/x
  3. Step 3: Cross multiply
    91,707.32x = 137,573.22 × 36,290.36
  4. Step 4: Simplify right side
    91,707.32x = 4,992,581,680.16
  5. Step 5: Solve for x
    x = 4,992,581,680.16/91,707.32
  6. Step 6: Final answer
    x = 54,440.38

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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.