Home / 55,218.61-76,200.70-31,344.77

Finding the Fourth Proportional to 55,218.61, 76,200.70 and 31,344.77

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Solution

The fourth proportional to 55,218.61, 76,200.70 and 31,344.77 is: 43,255.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,218.61 : 76,200.70 = 31,344.77 : x
  2. Step 2: Convert to fraction form
    55,218.61/76,200.70 = 31,344.77/x
  3. Step 3: Cross multiply
    55,218.61x = 76,200.70 × 31,344.77
  4. Step 4: Simplify right side
    55,218.61x = 2,388,493,586.25
  5. Step 5: Solve for x
    x = 2,388,493,586.25/55,218.61
  6. Step 6: Final answer
    x = 43,255.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.