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Finding the Fourth Proportional to 84,761.56, 127,091.56 and 28,600.42

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Solution

The fourth proportional to 84,761.56, 127,091.56 and 28,600.42 is: 42,883.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,761.56 : 127,091.56 = 28,600.42 : x
  2. Step 2: Convert to fraction form
    84,761.56/127,091.56 = 28,600.42/x
  3. Step 3: Cross multiply
    84,761.56x = 127,091.56 × 28,600.42
  4. Step 4: Simplify right side
    84,761.56x = 3,634,871,994.46
  5. Step 5: Solve for x
    x = 3,634,871,994.46/84,761.56
  6. Step 6: Final answer
    x = 42,883.50

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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.