Home / 86,286.12-129,263.22-52,908.84

Finding the Fourth Proportional to 86,286.12, 129,263.22 and 52,908.84

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Solution

The fourth proportional to 86,286.12, 129,263.22 and 52,908.84 is: 79,261.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,286.12 : 129,263.22 = 52,908.84 : x
  2. Step 2: Convert to fraction form
    86,286.12/129,263.22 = 52,908.84/x
  3. Step 3: Cross multiply
    86,286.12x = 129,263.22 × 52,908.84
  4. Step 4: Simplify right side
    86,286.12x = 6,839,167,024.86
  5. Step 5: Solve for x
    x = 6,839,167,024.86/86,286.12
  6. Step 6: Final answer
    x = 79,261.50

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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.