Home / 55,123.35-76,074.30-31,252.20

Finding the Fourth Proportional to 55,123.35, 76,074.30 and 31,252.20

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Solution

The fourth proportional to 55,123.35, 76,074.30 and 31,252.20 is: 43,130.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,123.35 : 76,074.30 = 31,252.20 : x
  2. Step 2: Convert to fraction form
    55,123.35/76,074.30 = 31,252.20/x
  3. Step 3: Cross multiply
    55,123.35x = 76,074.30 × 31,252.20
  4. Step 4: Simplify right side
    55,123.35x = 2,377,489,238.46
  5. Step 5: Solve for x
    x = 2,377,489,238.46/55,123.35
  6. Step 6: Final answer
    x = 43,130.35

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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.