Home / 93,400.92-128,897.10-53,121.78

Finding the Fourth Proportional to 93,400.92, 128,897.10 and 53,121.78

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Solution

The fourth proportional to 93,400.92, 128,897.10 and 53,121.78 is: 73,310.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,400.92 : 128,897.10 = 53,121.78 : x
  2. Step 2: Convert to fraction form
    93,400.92/128,897.10 = 53,121.78/x
  3. Step 3: Cross multiply
    93,400.92x = 128,897.10 × 53,121.78
  4. Step 4: Simplify right side
    93,400.92x = 6,847,243,388.84
  5. Step 5: Solve for x
    x = 6,847,243,388.84/93,400.92
  6. Step 6: Final answer
    x = 73,310.23

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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.