Home / 82,856.08-124,340-30,270.88

Finding the Fourth Proportional to 82,856.08, 124,340 and 30,270.88

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Solution

The fourth proportional to 82,856.08, 124,340 and 30,270.88 is: 45,426.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,856.08 : 124,340 = 30,270.88 : x
  2. Step 2: Convert to fraction form
    82,856.08/124,340 = 30,270.88/x
  3. Step 3: Cross multiply
    82,856.08x = 124,340 × 30,270.88
  4. Step 4: Simplify right side
    82,856.08x = 3,763,881,219.20
  5. Step 5: Solve for x
    x = 3,763,881,219.20/82,856.08
  6. Step 6: Final answer
    x = 45,426.74

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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.