Home / 53,621.96-80,381.10-20,319.08

Finding the Fourth Proportional to 53,621.96, 80,381.10 and 20,319.08

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Solution

The fourth proportional to 53,621.96, 80,381.10 and 20,319.08 is: 30,458.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,621.96 : 80,381.10 = 20,319.08 : x
  2. Step 2: Convert to fraction form
    53,621.96/80,381.10 = 20,319.08/x
  3. Step 3: Cross multiply
    53,621.96x = 80,381.10 × 20,319.08
  4. Step 4: Simplify right side
    53,621.96x = 1,633,270,001.39
  5. Step 5: Solve for x
    x = 1,633,270,001.39/53,621.96
  6. Step 6: Final answer
    x = 30,458.98

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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.