Home / 85,452.02-128,141.14-29,297.62

Finding the Fourth Proportional to 85,452.02, 128,141.14 and 29,297.62

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Solution

The fourth proportional to 85,452.02, 128,141.14 and 29,297.62 is: 43,933.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,452.02 : 128,141.14 = 29,297.62 : x
  2. Step 2: Convert to fraction form
    85,452.02/128,141.14 = 29,297.62/x
  3. Step 3: Cross multiply
    85,452.02x = 128,141.14 × 29,297.62
  4. Step 4: Simplify right side
    85,452.02x = 3,754,230,426.09
  5. Step 5: Solve for x
    x = 3,754,230,426.09/85,452.02
  6. Step 6: Final answer
    x = 43,933.78

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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.