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Finding the Fourth Proportional to 86,087.68, 118,834.68 and 54,250.36

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Solution

The fourth proportional to 86,087.68, 118,834.68 and 54,250.36 is: 74,886.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,087.68 : 118,834.68 = 54,250.36 : x
  2. Step 2: Convert to fraction form
    86,087.68/118,834.68 = 54,250.36/x
  3. Step 3: Cross multiply
    86,087.68x = 118,834.68 × 54,250.36
  4. Step 4: Simplify right side
    86,087.68x = 6,446,824,170.48
  5. Step 5: Solve for x
    x = 6,446,824,170.48/86,087.68
  6. Step 6: Final answer
    x = 74,886.72

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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.