Home / 55,320.87-76,349.25-31,451.12

Finding the Fourth Proportional to 55,320.87, 76,349.25 and 31,451.12

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Solution

The fourth proportional to 55,320.87, 76,349.25 and 31,451.12 is: 43,406.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,320.87 : 76,349.25 = 31,451.12 : x
  2. Step 2: Convert to fraction form
    55,320.87/76,349.25 = 31,451.12/x
  3. Step 3: Cross multiply
    55,320.87x = 76,349.25 × 31,451.12
  4. Step 4: Simplify right side
    55,320.87x = 2,401,269,041.91
  5. Step 5: Solve for x
    x = 2,401,269,041.91/55,320.87
  6. Step 6: Final answer
    x = 43,406.21

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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.