Home / 85,557.47-128,326.39-22,383.69

Finding the Fourth Proportional to 85,557.47, 128,326.39 and 22,383.69

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Solution

The fourth proportional to 85,557.47, 128,326.39 and 22,383.69 is: 33,572.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,557.47 : 128,326.39 = 22,383.69 : x
  2. Step 2: Convert to fraction form
    85,557.47/128,326.39 = 22,383.69/x
  3. Step 3: Cross multiply
    85,557.47x = 128,326.39 × 22,383.69
  4. Step 4: Simplify right side
    85,557.47x = 2,872,417,546.91
  5. Step 5: Solve for x
    x = 2,872,417,546.91/85,557.47
  6. Step 6: Final answer
    x = 33,572.96

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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.