Home / 55,046.06-75,977.16-31,186.80

Finding the Fourth Proportional to 55,046.06, 75,977.16 and 31,186.80

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Solution

The fourth proportional to 55,046.06, 75,977.16 and 31,186.80 is: 43,045.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,046.06 : 75,977.16 = 31,186.80 : x
  2. Step 2: Convert to fraction form
    55,046.06/75,977.16 = 31,186.80/x
  3. Step 3: Cross multiply
    55,046.06x = 75,977.16 × 31,186.80
  4. Step 4: Simplify right side
    55,046.06x = 2,369,484,493.49
  5. Step 5: Solve for x
    x = 2,369,484,493.49/55,046.06
  6. Step 6: Final answer
    x = 43,045.49

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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.