Home / 85,528.25-128,297.65-32,937.78

Finding the Fourth Proportional to 85,528.25, 128,297.65 and 32,937.78

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Solution

The fourth proportional to 85,528.25, 128,297.65 and 32,937.78 is: 49,408.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,528.25 : 128,297.65 = 32,937.78 : x
  2. Step 2: Convert to fraction form
    85,528.25/128,297.65 = 32,937.78/x
  3. Step 3: Cross multiply
    85,528.25x = 128,297.65 × 32,937.78
  4. Step 4: Simplify right side
    85,528.25x = 4,225,839,770.22
  5. Step 5: Solve for x
    x = 4,225,839,770.22/85,528.25
  6. Step 6: Final answer
    x = 49,408.70

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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.