Home / 93,458.09-128,972.12-51,016.61

Finding the Fourth Proportional to 93,458.09, 128,972.12 and 51,016.61

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Solution

The fourth proportional to 93,458.09, 128,972.12 and 51,016.61 is: 70,402.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,458.09 : 128,972.12 = 51,016.61 : x
  2. Step 2: Convert to fraction form
    93,458.09/128,972.12 = 51,016.61/x
  3. Step 3: Cross multiply
    93,458.09x = 128,972.12 × 51,016.61
  4. Step 4: Simplify right side
    93,458.09x = 6,579,720,414.26
  5. Step 5: Solve for x
    x = 6,579,720,414.26/93,458.09
  6. Step 6: Final answer
    x = 70,402.90

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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.