Home / 57,087.06-78,768.32-39,175.52

Finding the Fourth Proportional to 57,087.06, 78,768.32 and 39,175.52

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Solution

The fourth proportional to 57,087.06, 78,768.32 and 39,175.52 is: 54,054.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,087.06 : 78,768.32 = 39,175.52 : x
  2. Step 2: Convert to fraction form
    57,087.06/78,768.32 = 39,175.52/x
  3. Step 3: Cross multiply
    57,087.06x = 78,768.32 × 39,175.52
  4. Step 4: Simplify right side
    57,087.06x = 3,085,789,895.53
  5. Step 5: Solve for x
    x = 3,085,789,895.53/57,087.06
  6. Step 6: Final answer
    x = 54,054.10

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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.