Home / 53,719.80-80,579.69-20,432.17

Finding the Fourth Proportional to 53,719.80, 80,579.69 and 20,432.17

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Solution

The fourth proportional to 53,719.80, 80,579.69 and 20,432.17 is: 30,648.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,719.80 : 80,579.69 = 20,432.17 : x
  2. Step 2: Convert to fraction form
    53,719.80/80,579.69 = 20,432.17/x
  3. Step 3: Cross multiply
    53,719.80x = 80,579.69 × 20,432.17
  4. Step 4: Simplify right side
    53,719.80x = 1,646,417,924.63
  5. Step 5: Solve for x
    x = 1,646,417,924.63/53,719.80
  6. Step 6: Final answer
    x = 30,648.25

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.