Home / 56,948.48-78,568.08-35,720

Finding the Fourth Proportional to 56,948.48, 78,568.08 and 35,720

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Solution

The fourth proportional to 56,948.48, 78,568.08 and 35,720 is: 49,280.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,948.48 : 78,568.08 = 35,720 : x
  2. Step 2: Convert to fraction form
    56,948.48/78,568.08 = 35,720/x
  3. Step 3: Cross multiply
    56,948.48x = 78,568.08 × 35,720
  4. Step 4: Simplify right side
    56,948.48x = 2,806,451,817.60
  5. Step 5: Solve for x
    x = 2,806,451,817.60/56,948.48
  6. Step 6: Final answer
    x = 49,280.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.