Home / 93,414.06-128,877.71-71,910.38

Finding the Fourth Proportional to 93,414.06, 128,877.71 and 71,910.38

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Solution

The fourth proportional to 93,414.06, 128,877.71 and 71,910.38 is: 99,210.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,414.06 : 128,877.71 = 71,910.38 : x
  2. Step 2: Convert to fraction form
    93,414.06/128,877.71 = 71,910.38/x
  3. Step 3: Cross multiply
    93,414.06x = 128,877.71 × 71,910.38
  4. Step 4: Simplify right side
    93,414.06x = 9,267,644,740.08
  5. Step 5: Solve for x
    x = 9,267,644,740.08/93,414.06
  6. Step 6: Final answer
    x = 99,210.38

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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.