Home / 55,378.08-76,422.24-30,228.48

Finding the Fourth Proportional to 55,378.08, 76,422.24 and 30,228.48

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Solution

The fourth proportional to 55,378.08, 76,422.24 and 30,228.48 is: 41,715.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,378.08 : 76,422.24 = 30,228.48 : x
  2. Step 2: Convert to fraction form
    55,378.08/76,422.24 = 30,228.48/x
  3. Step 3: Cross multiply
    55,378.08x = 76,422.24 × 30,228.48
  4. Step 4: Simplify right side
    55,378.08x = 2,310,128,153.40
  5. Step 5: Solve for x
    x = 2,310,128,153.40/55,378.08
  6. Step 6: Final answer
    x = 41,715.57

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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.