Home / 53,150.78-73,337.40-40,400.57

Finding the Fourth Proportional to 53,150.78, 73,337.40 and 40,400.57

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Solution

The fourth proportional to 53,150.78, 73,337.40 and 40,400.57 is: 55,744.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,150.78 : 73,337.40 = 40,400.57 : x
  2. Step 2: Convert to fraction form
    53,150.78/73,337.40 = 40,400.57/x
  3. Step 3: Cross multiply
    53,150.78x = 73,337.40 × 40,400.57
  4. Step 4: Simplify right side
    53,150.78x = 2,962,872,945.66
  5. Step 5: Solve for x
    x = 2,962,872,945.66/53,150.78
  6. Step 6: Final answer
    x = 55,744.67

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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.