Home / 94,289.09-130,111.22-55,520.78

Finding the Fourth Proportional to 94,289.09, 130,111.22 and 55,520.78

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Solution

The fourth proportional to 94,289.09, 130,111.22 and 55,520.78 is: 76,614.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,289.09 : 130,111.22 = 55,520.78 : x
  2. Step 2: Convert to fraction form
    94,289.09/130,111.22 = 55,520.78/x
  3. Step 3: Cross multiply
    94,289.09x = 130,111.22 × 55,520.78
  4. Step 4: Simplify right side
    94,289.09x = 7,223,876,143.55
  5. Step 5: Solve for x
    x = 7,223,876,143.55/94,289.09
  6. Step 6: Final answer
    x = 76,614.13

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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.