Home / 90,107.40-124,337.24-49,815.58

Finding the Fourth Proportional to 90,107.40, 124,337.24 and 49,815.58

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Solution

The fourth proportional to 90,107.40, 124,337.24 and 49,815.58 is: 68,739.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,107.40 : 124,337.24 = 49,815.58 : x
  2. Step 2: Convert to fraction form
    90,107.40/124,337.24 = 49,815.58/x
  3. Step 3: Cross multiply
    90,107.40x = 124,337.24 × 49,815.58
  4. Step 4: Simplify right side
    90,107.40x = 6,193,931,726.20
  5. Step 5: Solve for x
    x = 6,193,931,726.20/90,107.40
  6. Step 6: Final answer
    x = 68,739.43

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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.