Home / 52,247.48-78,317.60-20,644.74

Finding the Fourth Proportional to 52,247.48, 78,317.60 and 20,644.74

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Solution

The fourth proportional to 52,247.48, 78,317.60 and 20,644.74 is: 30,945.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,247.48 : 78,317.60 = 20,644.74 : x
  2. Step 2: Convert to fraction form
    52,247.48/78,317.60 = 20,644.74/x
  3. Step 3: Cross multiply
    52,247.48x = 78,317.60 × 20,644.74
  4. Step 4: Simplify right side
    52,247.48x = 1,616,846,386.20
  5. Step 5: Solve for x
    x = 1,616,846,386.20/52,247.48
  6. Step 6: Final answer
    x = 30,945.92

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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.