Home / 51,399.54-70,931.85-30,179.16

Finding the Fourth Proportional to 51,399.54, 70,931.85 and 30,179.16

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Solution

The fourth proportional to 51,399.54, 70,931.85 and 30,179.16 is: 41,647.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,399.54 : 70,931.85 = 30,179.16 : x
  2. Step 2: Convert to fraction form
    51,399.54/70,931.85 = 30,179.16/x
  3. Step 3: Cross multiply
    51,399.54x = 70,931.85 × 30,179.16
  4. Step 4: Simplify right side
    51,399.54x = 2,140,663,650.25
  5. Step 5: Solve for x
    x = 2,140,663,650.25/51,399.54
  6. Step 6: Final answer
    x = 41,647.53

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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.