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Finding the Fourth Proportional to 84,958.40, 117,209.88 and 54,741.32

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Solution

The fourth proportional to 84,958.40, 117,209.88 and 54,741.32 is: 75,521.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,958.40 : 117,209.88 = 54,741.32 : x
  2. Step 2: Convert to fraction form
    84,958.40/117,209.88 = 54,741.32/x
  3. Step 3: Cross multiply
    84,958.40x = 117,209.88 × 54,741.32
  4. Step 4: Simplify right side
    84,958.40x = 6,416,223,548.24
  5. Step 5: Solve for x
    x = 6,416,223,548.24/84,958.40
  6. Step 6: Final answer
    x = 75,521.94

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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.