Home / 93,440.80-140,161.20-31,111.30

Finding the Fourth Proportional to 93,440.80, 140,161.20 and 31,111.30

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Solution

The fourth proportional to 93,440.80, 140,161.20 and 31,111.30 is: 46,666.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,440.80 : 140,161.20 = 31,111.30 : x
  2. Step 2: Convert to fraction form
    93,440.80/140,161.20 = 31,111.30/x
  3. Step 3: Cross multiply
    93,440.80x = 140,161.20 × 31,111.30
  4. Step 4: Simplify right side
    93,440.80x = 4,360,597,141.56
  5. Step 5: Solve for x
    x = 4,360,597,141.56/93,440.80
  6. Step 6: Final answer
    x = 46,666.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.