Home / 93,135.75-139,731.21-53,721.15

Finding the Fourth Proportional to 93,135.75, 139,731.21 and 53,721.15

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Solution

The fourth proportional to 93,135.75, 139,731.21 and 53,721.15 is: 80,597.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,135.75 : 139,731.21 = 53,721.15 : x
  2. Step 2: Convert to fraction form
    93,135.75/139,731.21 = 53,721.15/x
  3. Step 3: Cross multiply
    93,135.75x = 139,731.21 × 53,721.15
  4. Step 4: Simplify right side
    93,135.75x = 7,506,521,292.09
  5. Step 5: Solve for x
    x = 7,506,521,292.09/93,135.75
  6. Step 6: Final answer
    x = 80,597.64

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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.