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Finding the Fourth Proportional to 90,308.78, 124,624.80 and 50,022.41

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Solution

The fourth proportional to 90,308.78, 124,624.80 and 50,022.41 is: 69,030.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,308.78 : 124,624.80 = 50,022.41 : x
  2. Step 2: Convert to fraction form
    90,308.78/124,624.80 = 50,022.41/x
  3. Step 3: Cross multiply
    90,308.78x = 124,624.80 × 50,022.41
  4. Step 4: Simplify right side
    90,308.78x = 6,234,032,841.77
  5. Step 5: Solve for x
    x = 6,234,032,841.77/90,308.78
  6. Step 6: Final answer
    x = 69,030.20

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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.