Home / 90,513.24-124,905-50,228.76

Finding the Fourth Proportional to 90,513.24, 124,905 and 50,228.76

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Solution

The fourth proportional to 90,513.24, 124,905 and 50,228.76 is: 69,313.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,513.24 : 124,905 = 50,228.76 : x
  2. Step 2: Convert to fraction form
    90,513.24/124,905 = 50,228.76/x
  3. Step 3: Cross multiply
    90,513.24x = 124,905 × 50,228.76
  4. Step 4: Simplify right side
    90,513.24x = 6,273,823,267.80
  5. Step 5: Solve for x
    x = 6,273,823,267.80/90,513.24
  6. Step 6: Final answer
    x = 69,313.87

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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.