Home / 86,205.25-129,307.88-23,875.75

Finding the Fourth Proportional to 86,205.25, 129,307.88 and 23,875.75

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Solution

The fourth proportional to 86,205.25, 129,307.88 and 23,875.75 is: 35,813.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,205.25 : 129,307.88 = 23,875.75 : x
  2. Step 2: Convert to fraction form
    86,205.25/129,307.88 = 23,875.75/x
  3. Step 3: Cross multiply
    86,205.25x = 129,307.88 × 23,875.75
  4. Step 4: Simplify right side
    86,205.25x = 3,087,322,615.91
  5. Step 5: Solve for x
    x = 3,087,322,615.91/86,205.25
  6. Step 6: Final answer
    x = 35,813.63

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.