Home / 85,110.52-117,445.26-47,388.28

Finding the Fourth Proportional to 85,110.52, 117,445.26 and 47,388.28

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Solution

The fourth proportional to 85,110.52, 117,445.26 and 47,388.28 is: 65,391.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,110.52 : 117,445.26 = 47,388.28 : x
  2. Step 2: Convert to fraction form
    85,110.52/117,445.26 = 47,388.28/x
  3. Step 3: Cross multiply
    85,110.52x = 117,445.26 × 47,388.28
  4. Step 4: Simplify right side
    85,110.52x = 5,565,528,865.55
  5. Step 5: Solve for x
    x = 5,565,528,865.55/85,110.52
  6. Step 6: Final answer
    x = 65,391.79

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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.