Home / 55,958.12-77,226.90-30,812.36

Finding the Fourth Proportional to 55,958.12, 77,226.90 and 30,812.36

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Solution

The fourth proportional to 55,958.12, 77,226.90 and 30,812.36 is: 42,523.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,958.12 : 77,226.90 = 30,812.36 : x
  2. Step 2: Convert to fraction form
    55,958.12/77,226.90 = 30,812.36/x
  3. Step 3: Cross multiply
    55,958.12x = 77,226.90 × 30,812.36
  4. Step 4: Simplify right side
    55,958.12x = 2,379,543,044.48
  5. Step 5: Solve for x
    x = 2,379,543,044.48/55,958.12
  6. Step 6: Final answer
    x = 42,523.64

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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.