Home / 57,202.25-78,840.52-38,047.78

Finding the Fourth Proportional to 57,202.25, 78,840.52 and 38,047.78

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Solution

The fourth proportional to 57,202.25, 78,840.52 and 38,047.78 is: 52,440.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,202.25 : 78,840.52 = 38,047.78 : x
  2. Step 2: Convert to fraction form
    57,202.25/78,840.52 = 38,047.78/x
  3. Step 3: Cross multiply
    57,202.25x = 78,840.52 × 38,047.78
  4. Step 4: Simplify right side
    57,202.25x = 2,999,706,175.60
  5. Step 5: Solve for x
    x = 2,999,706,175.60/57,202.25
  6. Step 6: Final answer
    x = 52,440.35

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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.