Home / 74,070.64-102,217.15-40,079.73

Finding the Fourth Proportional to 74,070.64, 102,217.15 and 40,079.73

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Solution

The fourth proportional to 74,070.64, 102,217.15 and 40,079.73 is: 55,309.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,070.64 : 102,217.15 = 40,079.73 : x
  2. Step 2: Convert to fraction form
    74,070.64/102,217.15 = 40,079.73/x
  3. Step 3: Cross multiply
    74,070.64x = 102,217.15 × 40,079.73
  4. Step 4: Simplify right side
    74,070.64x = 4,096,835,440.15
  5. Step 5: Solve for x
    x = 4,096,835,440.15/74,070.64
  6. Step 6: Final answer
    x = 55,309.84

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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.