Home / 85,366.20-127,886.10-45,910.20

Finding the Fourth Proportional to 85,366.20, 127,886.10 and 45,910.20

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Solution

The fourth proportional to 85,366.20, 127,886.10 and 45,910.20 is: 68,777.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,366.20 : 127,886.10 = 45,910.20 : x
  2. Step 2: Convert to fraction form
    85,366.20/127,886.10 = 45,910.20/x
  3. Step 3: Cross multiply
    85,366.20x = 127,886.10 × 45,910.20
  4. Step 4: Simplify right side
    85,366.20x = 5,871,276,428.22
  5. Step 5: Solve for x
    x = 5,871,276,428.22/85,366.20
  6. Step 6: Final answer
    x = 68,777.53

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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.