Home / 90,423.17-124,780.61-50,137.37

Finding the Fourth Proportional to 90,423.17, 124,780.61 and 50,137.37

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Solution

The fourth proportional to 90,423.17, 124,780.61 and 50,137.37 is: 69,187.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,423.17 : 124,780.61 = 50,137.37 : x
  2. Step 2: Convert to fraction form
    90,423.17/124,780.61 = 50,137.37/x
  3. Step 3: Cross multiply
    90,423.17x = 124,780.61 × 50,137.37
  4. Step 4: Simplify right side
    90,423.17x = 6,256,171,361.71
  5. Step 5: Solve for x
    x = 6,256,171,361.71/90,423.17
  6. Step 6: Final answer
    x = 69,187.70

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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.