Home / 93,441.12-139,993.20-51,275.76

Finding the Fourth Proportional to 93,441.12, 139,993.20 and 51,275.76

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Solution

The fourth proportional to 93,441.12, 139,993.20 and 51,275.76 is: 76,821.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,441.12 : 139,993.20 = 51,275.76 : x
  2. Step 2: Convert to fraction form
    93,441.12/139,993.20 = 51,275.76/x
  3. Step 3: Cross multiply
    93,441.12x = 139,993.20 × 51,275.76
  4. Step 4: Simplify right side
    93,441.12x = 7,178,257,724.83
  5. Step 5: Solve for x
    x = 7,178,257,724.83/93,441.12
  6. Step 6: Final answer
    x = 76,821.19

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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.