Home / 71,188.36-98,235.06-39,356.96

Finding the Fourth Proportional to 71,188.36, 98,235.06 and 39,356.96

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Solution

The fourth proportional to 71,188.36, 98,235.06 and 39,356.96 is: 54,309.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,188.36 : 98,235.06 = 39,356.96 : x
  2. Step 2: Convert to fraction form
    71,188.36/98,235.06 = 39,356.96/x
  3. Step 3: Cross multiply
    71,188.36x = 98,235.06 × 39,356.96
  4. Step 4: Simplify right side
    71,188.36x = 3,866,233,327.02
  5. Step 5: Solve for x
    x = 3,866,233,327.02/71,188.36
  6. Step 6: Final answer
    x = 54,309.91

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1.5x scale

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.