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Finding the Fourth Proportional to 86,425, 119,277.06 and 48,706.12

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Solution

The fourth proportional to 86,425, 119,277.06 and 48,706.12 is: 67,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,425 : 119,277.06 = 48,706.12 : x
  2. Step 2: Convert to fraction form
    86,425/119,277.06 = 48,706.12/x
  3. Step 3: Cross multiply
    86,425x = 119,277.06 × 48,706.12
  4. Step 4: Simplify right side
    86,425x = 5,809,522,797.61
  5. Step 5: Solve for x
    x = 5,809,522,797.61/86,425
  6. Step 6: Final answer
    x = 67,220.40

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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.