Home / 85,772.04-128,670.47-32,449.56

Finding the Fourth Proportional to 85,772.04, 128,670.47 and 32,449.56

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Solution

The fourth proportional to 85,772.04, 128,670.47 and 32,449.56 is: 48,679.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,772.04 : 128,670.47 = 32,449.56 : x
  2. Step 2: Convert to fraction form
    85,772.04/128,670.47 = 32,449.56/x
  3. Step 3: Cross multiply
    85,772.04x = 128,670.47 × 32,449.56
  4. Step 4: Simplify right side
    85,772.04x = 4,175,300,136.49
  5. Step 5: Solve for x
    x = 4,175,300,136.49/85,772.04
  6. Step 6: Final answer
    x = 48,679.03

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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.