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Finding the Fourth Proportional to 79,314.29, 118,812.80 and 47,706.89

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Solution

The fourth proportional to 79,314.29, 118,812.80 and 47,706.89 is: 71,464.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,314.29 : 118,812.80 = 47,706.89 : x
  2. Step 2: Convert to fraction form
    79,314.29/118,812.80 = 47,706.89/x
  3. Step 3: Cross multiply
    79,314.29x = 118,812.80 × 47,706.89
  4. Step 4: Simplify right side
    79,314.29x = 5,668,188,347.59
  5. Step 5: Solve for x
    x = 5,668,188,347.59/79,314.29
  6. Step 6: Final answer
    x = 71,464.91

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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.