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Finding the Fourth Proportional to 53,081.76, 73,251 and 29,206.20

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Solution

The fourth proportional to 53,081.76, 73,251 and 29,206.20 is: 40,303.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,081.76 : 73,251 = 29,206.20 : x
  2. Step 2: Convert to fraction form
    53,081.76/73,251 = 29,206.20/x
  3. Step 3: Cross multiply
    53,081.76x = 73,251 × 29,206.20
  4. Step 4: Simplify right side
    53,081.76x = 2,139,383,356.20
  5. Step 5: Solve for x
    x = 2,139,383,356.20/53,081.76
  6. Step 6: Final answer
    x = 40,303.55

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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.