Home / 85,571.58-128,330.06-29,398.14

Finding the Fourth Proportional to 85,571.58, 128,330.06 and 29,398.14

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Solution

The fourth proportional to 85,571.58, 128,330.06 and 29,398.14 is: 44,087.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,571.58 : 128,330.06 = 29,398.14 : x
  2. Step 2: Convert to fraction form
    85,571.58/128,330.06 = 29,398.14/x
  3. Step 3: Cross multiply
    85,571.58x = 128,330.06 × 29,398.14
  4. Step 4: Simplify right side
    85,571.58x = 3,772,665,070.09
  5. Step 5: Solve for x
    x = 3,772,665,070.09/85,571.58
  6. Step 6: Final answer
    x = 44,087.83

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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.