Home / 55,209.98-76,190.13-31,337.05

Finding the Fourth Proportional to 55,209.98, 76,190.13 and 31,337.05

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Solution

The fourth proportional to 55,209.98, 76,190.13 and 31,337.05 is: 43,245.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,209.98 : 76,190.13 = 31,337.05 : x
  2. Step 2: Convert to fraction form
    55,209.98/76,190.13 = 31,337.05/x
  3. Step 3: Cross multiply
    55,209.98x = 76,190.13 × 31,337.05
  4. Step 4: Simplify right side
    55,209.98x = 2,387,573,722.84
  5. Step 5: Solve for x
    x = 2,387,573,722.84/55,209.98
  6. Step 6: Final answer
    x = 43,245.33

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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.