Home / 85,187.52-127,677.60-38,427.84

Finding the Fourth Proportional to 85,187.52, 127,677.60 and 38,427.84

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Solution

The fourth proportional to 85,187.52, 127,677.60 and 38,427.84 is: 57,594.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,187.52 : 127,677.60 = 38,427.84 : x
  2. Step 2: Convert to fraction form
    85,187.52/127,677.60 = 38,427.84/x
  3. Step 3: Cross multiply
    85,187.52x = 127,677.60 × 38,427.84
  4. Step 4: Simplify right side
    85,187.52x = 4,906,374,384.38
  5. Step 5: Solve for x
    x = 4,906,374,384.38/85,187.52
  6. Step 6: Final answer
    x = 57,594.99

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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.