Home / 53,509.93-80,265.80-20,245.66

Finding the Fourth Proportional to 53,509.93, 80,265.80 and 20,245.66

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Solution

The fourth proportional to 53,509.93, 80,265.80 and 20,245.66 is: 30,368.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,509.93 : 80,265.80 = 20,245.66 : x
  2. Step 2: Convert to fraction form
    53,509.93/80,265.80 = 20,245.66/x
  3. Step 3: Cross multiply
    53,509.93x = 80,265.80 × 20,245.66
  4. Step 4: Simplify right side
    53,509.93x = 1,625,033,995.20
  5. Step 5: Solve for x
    x = 1,625,033,995.20/53,509.93
  6. Step 6: Final answer
    x = 30,368.83

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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.