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Finding the Fourth Proportional to 86,155.57, 129,239.48 and 22,975.34

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Solution

The fourth proportional to 86,155.57, 129,239.48 and 22,975.34 is: 34,464.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,155.57 : 129,239.48 = 22,975.34 : x
  2. Step 2: Convert to fraction form
    86,155.57/129,239.48 = 22,975.34/x
  3. Step 3: Cross multiply
    86,155.57x = 129,239.48 × 22,975.34
  4. Step 4: Simplify right side
    86,155.57x = 2,969,320,994.42
  5. Step 5: Solve for x
    x = 2,969,320,994.42/86,155.57
  6. Step 6: Final answer
    x = 34,464.64

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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.