Home / 74,490.15-102,695.78-50,575.31

Finding the Fourth Proportional to 74,490.15, 102,695.78 and 50,575.31

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Solution

The fourth proportional to 74,490.15, 102,695.78 and 50,575.31 is: 69,725.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,490.15 : 102,695.78 = 50,575.31 : x
  2. Step 2: Convert to fraction form
    74,490.15/102,695.78 = 50,575.31/x
  3. Step 3: Cross multiply
    74,490.15x = 102,695.78 × 50,575.31
  4. Step 4: Simplify right side
    74,490.15x = 5,193,870,522.15
  5. Step 5: Solve for x
    x = 5,193,870,522.15/74,490.15
  6. Step 6: Final answer
    x = 69,725.60

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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.