Home / 53,864.56-80,802.16-20,612.56

Finding the Fourth Proportional to 53,864.56, 80,802.16 and 20,612.56

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Solution

The fourth proportional to 53,864.56, 80,802.16 and 20,612.56 is: 30,920.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,864.56 : 80,802.16 = 20,612.56 : x
  2. Step 2: Convert to fraction form
    53,864.56/80,802.16 = 20,612.56/x
  3. Step 3: Cross multiply
    53,864.56x = 80,802.16 × 20,612.56
  4. Step 4: Simplify right side
    53,864.56x = 1,665,539,371.13
  5. Step 5: Solve for x
    x = 1,665,539,371.13/53,864.56
  6. Step 6: Final answer
    x = 30,920.88

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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.