Home / 86,528.72-129,839.25-33,938.66

Finding the Fourth Proportional to 86,528.72, 129,839.25 and 33,938.66

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Solution

The fourth proportional to 86,528.72, 129,839.25 and 33,938.66 is: 50,926.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,528.72 : 129,839.25 = 33,938.66 : x
  2. Step 2: Convert to fraction form
    86,528.72/129,839.25 = 33,938.66/x
  3. Step 3: Cross multiply
    86,528.72x = 129,839.25 × 33,938.66
  4. Step 4: Simplify right side
    86,528.72x = 4,406,570,612.27
  5. Step 5: Solve for x
    x = 4,406,570,612.27/86,528.72
  6. Step 6: Final answer
    x = 50,926.10

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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.