Home / 90,423.77-124,786.29-50,139.23

Finding the Fourth Proportional to 90,423.77, 124,786.29 and 50,139.23

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Solution

The fourth proportional to 90,423.77, 124,786.29 and 50,139.23 is: 69,192.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,423.77 : 124,786.29 = 50,139.23 : x
  2. Step 2: Convert to fraction form
    90,423.77/124,786.29 = 50,139.23/x
  3. Step 3: Cross multiply
    90,423.77x = 124,786.29 × 50,139.23
  4. Step 4: Simplify right side
    90,423.77x = 6,256,687,871.23
  5. Step 5: Solve for x
    x = 6,256,687,871.23/90,423.77
  6. Step 6: Final answer
    x = 69,192.96

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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.