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Finding the Fourth Proportional to 86,763.42, 129,996.60 and 47,348.22

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Solution

The fourth proportional to 86,763.42, 129,996.60 and 47,348.22 is: 70,941.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,763.42 : 129,996.60 = 47,348.22 : x
  2. Step 2: Convert to fraction form
    86,763.42/129,996.60 = 47,348.22/x
  3. Step 3: Cross multiply
    86,763.42x = 129,996.60 × 47,348.22
  4. Step 4: Simplify right side
    86,763.42x = 6,155,107,616.05
  5. Step 5: Solve for x
    x = 6,155,107,616.05/86,763.42
  6. Step 6: Final answer
    x = 70,941.27

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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.