Home / 85,532.25-128,266.47-29,356.42

Finding the Fourth Proportional to 85,532.25, 128,266.47 and 29,356.42

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Solution

The fourth proportional to 85,532.25, 128,266.47 and 29,356.42 is: 44,023.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,532.25 : 128,266.47 = 29,356.42 : x
  2. Step 2: Convert to fraction form
    85,532.25/128,266.47 = 29,356.42/x
  3. Step 3: Cross multiply
    85,532.25x = 128,266.47 × 29,356.42
  4. Step 4: Simplify right side
    85,532.25x = 3,765,444,365.24
  5. Step 5: Solve for x
    x = 3,765,444,365.24/85,532.25
  6. Step 6: Final answer
    x = 44,023.68

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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.