Home / 53,120.70-73,305.09-30,154.77

Finding the Fourth Proportional to 53,120.70, 73,305.09 and 30,154.77

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Solution

The fourth proportional to 53,120.70, 73,305.09 and 30,154.77 is: 41,612.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,120.70 : 73,305.09 = 30,154.77 : x
  2. Step 2: Convert to fraction form
    53,120.70/73,305.09 = 30,154.77/x
  3. Step 3: Cross multiply
    53,120.70x = 73,305.09 × 30,154.77
  4. Step 4: Simplify right side
    53,120.70x = 2,210,498,128.78
  5. Step 5: Solve for x
    x = 2,210,498,128.78/53,120.70
  6. Step 6: Final answer
    x = 41,612.74

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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.