Home / 53,518.20-80,278.20-20,253.93

Finding the Fourth Proportional to 53,518.20, 80,278.20 and 20,253.93

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Solution

The fourth proportional to 53,518.20, 80,278.20 and 20,253.93 is: 30,381.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,518.20 : 80,278.20 = 20,253.93 : x
  2. Step 2: Convert to fraction form
    53,518.20/80,278.20 = 20,253.93/x
  3. Step 3: Cross multiply
    53,518.20x = 80,278.20 × 20,253.93
  4. Step 4: Simplify right side
    53,518.20x = 1,625,949,043.33
  5. Step 5: Solve for x
    x = 1,625,949,043.33/53,518.20
  6. Step 6: Final answer
    x = 30,381.24

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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.