Home / 53,555.88-80,278.10-17,990.81

Finding the Fourth Proportional to 53,555.88, 80,278.10 and 17,990.81

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Solution

The fourth proportional to 53,555.88, 80,278.10 and 17,990.81 is: 26,967.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,555.88 : 80,278.10 = 17,990.81 : x
  2. Step 2: Convert to fraction form
    53,555.88/80,278.10 = 17,990.81/x
  3. Step 3: Cross multiply
    53,555.88x = 80,278.10 × 17,990.81
  4. Step 4: Simplify right side
    53,555.88x = 1,444,267,552.92
  5. Step 5: Solve for x
    x = 1,444,267,552.92/53,555.88
  6. Step 6: Final answer
    x = 26,967.49

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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.