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Finding the Fourth Proportional to 86,087.76, 128,891.04 and 46,503.04

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Solution

The fourth proportional to 86,087.76, 128,891.04 and 46,503.04 is: 69,624.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,087.76 : 128,891.04 = 46,503.04 : x
  2. Step 2: Convert to fraction form
    86,087.76/128,891.04 = 46,503.04/x
  3. Step 3: Cross multiply
    86,087.76x = 128,891.04 × 46,503.04
  4. Step 4: Simplify right side
    86,087.76x = 5,993,825,188.76
  5. Step 5: Solve for x
    x = 5,993,825,188.76/86,087.76
  6. Step 6: Final answer
    x = 69,624.59

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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.