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Finding the Fourth Proportional to 86,460.70, 129,702.38 and 33,863.34

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Solution

The fourth proportional to 86,460.70, 129,702.38 and 33,863.34 is: 50,799.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,460.70 : 129,702.38 = 33,863.34 : x
  2. Step 2: Convert to fraction form
    86,460.70/129,702.38 = 33,863.34/x
  3. Step 3: Cross multiply
    86,460.70x = 129,702.38 × 33,863.34
  4. Step 4: Simplify right side
    86,460.70x = 4,392,155,792.75
  5. Step 5: Solve for x
    x = 4,392,155,792.75/86,460.70
  6. Step 6: Final answer
    x = 50,799.45

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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.