Home / 55,378.99-76,422.98-30,228.49

Finding the Fourth Proportional to 55,378.99, 76,422.98 and 30,228.49

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Solution

The fourth proportional to 55,378.99, 76,422.98 and 30,228.49 is: 41,715.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,378.99 : 76,422.98 = 30,228.49 : x
  2. Step 2: Convert to fraction form
    55,378.99/76,422.98 = 30,228.49/x
  3. Step 3: Cross multiply
    55,378.99x = 76,422.98 × 30,228.49
  4. Step 4: Simplify right side
    55,378.99x = 2,310,151,171.21
  5. Step 5: Solve for x
    x = 2,310,151,171.21/55,378.99
  6. Step 6: Final answer
    x = 41,715.30

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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.