Home / 90,478.64-124,875.49-50,205.37

Finding the Fourth Proportional to 90,478.64, 124,875.49 and 50,205.37

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Solution

The fourth proportional to 90,478.64, 124,875.49 and 50,205.37 is: 69,291.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,478.64 : 124,875.49 = 50,205.37 : x
  2. Step 2: Convert to fraction form
    90,478.64/124,875.49 = 50,205.37/x
  3. Step 3: Cross multiply
    90,478.64x = 124,875.49 × 50,205.37
  4. Step 4: Simplify right side
    90,478.64x = 6,269,420,069.96
  5. Step 5: Solve for x
    x = 6,269,420,069.96/90,478.64
  6. Step 6: Final answer
    x = 69,291.72

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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.