Home / 56,809.20-85,246.20-39,291.60

Finding the Fourth Proportional to 56,809.20, 85,246.20 and 39,291.60

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Solution

The fourth proportional to 56,809.20, 85,246.20 and 39,291.60 is: 58,959.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,809.20 : 85,246.20 = 39,291.60 : x
  2. Step 2: Convert to fraction form
    56,809.20/85,246.20 = 39,291.60/x
  3. Step 3: Cross multiply
    56,809.20x = 85,246.20 × 39,291.60
  4. Step 4: Simplify right side
    56,809.20x = 3,349,459,591.92
  5. Step 5: Solve for x
    x = 3,349,459,591.92/56,809.20
  6. Step 6: Final answer
    x = 58,959.81

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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.