Home / 53,009.10-73,158.39-30,351.78

Finding the Fourth Proportional to 53,009.10, 73,158.39 and 30,351.78

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Solution

The fourth proportional to 53,009.10, 73,158.39 and 30,351.78 is: 41,888.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,009.10 : 73,158.39 = 30,351.78 : x
  2. Step 2: Convert to fraction form
    53,009.10/73,158.39 = 30,351.78/x
  3. Step 3: Cross multiply
    53,009.10x = 73,158.39 × 30,351.78
  4. Step 4: Simplify right side
    53,009.10x = 2,220,487,358.43
  5. Step 5: Solve for x
    x = 2,220,487,358.43/53,009.10
  6. Step 6: Final answer
    x = 41,888.80

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1.5x scale

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.