Home / 55,211.58-76,192.34-31,338.66

Finding the Fourth Proportional to 55,211.58, 76,192.34 and 31,338.66

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Solution

The fourth proportional to 55,211.58, 76,192.34 and 31,338.66 is: 43,247.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,211.58 : 76,192.34 = 31,338.66 : x
  2. Step 2: Convert to fraction form
    55,211.58/76,192.34 = 31,338.66/x
  3. Step 3: Cross multiply
    55,211.58x = 76,192.34 × 31,338.66
  4. Step 4: Simplify right side
    55,211.58x = 2,387,765,681.17
  5. Step 5: Solve for x
    x = 2,387,765,681.17/55,211.58
  6. Step 6: Final answer
    x = 43,247.55

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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.