Home / 55,338.98-76,431.52-40,298.90

Finding the Fourth Proportional to 55,338.98, 76,431.52 and 40,298.90

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Solution

The fourth proportional to 55,338.98, 76,431.52 and 40,298.90 is: 55,658.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,338.98 : 76,431.52 = 40,298.90 : x
  2. Step 2: Convert to fraction form
    55,338.98/76,431.52 = 40,298.90/x
  3. Step 3: Cross multiply
    55,338.98x = 76,431.52 × 40,298.90
  4. Step 4: Simplify right side
    55,338.98x = 3,080,106,181.33
  5. Step 5: Solve for x
    x = 3,080,106,181.33/55,338.98
  6. Step 6: Final answer
    x = 55,658.89

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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.