Home / 53,691.42-80,518.86-20,403.48

Finding the Fourth Proportional to 53,691.42, 80,518.86 and 20,403.48

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Solution

The fourth proportional to 53,691.42, 80,518.86 and 20,403.48 is: 30,598.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,691.42 : 80,518.86 = 20,403.48 : x
  2. Step 2: Convert to fraction form
    53,691.42/80,518.86 = 20,403.48/x
  3. Step 3: Cross multiply
    53,691.42x = 80,518.86 × 20,403.48
  4. Step 4: Simplify right side
    53,691.42x = 1,642,864,949.63
  5. Step 5: Solve for x
    x = 1,642,864,949.63/53,691.42
  6. Step 6: Final answer
    x = 30,598.28

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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.