Home / 93,458.76-128,968.20-51,016.56

Finding the Fourth Proportional to 93,458.76, 128,968.20 and 51,016.56

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Solution

The fourth proportional to 93,458.76, 128,968.20 and 51,016.56 is: 70,400.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,458.76 : 128,968.20 = 51,016.56 : x
  2. Step 2: Convert to fraction form
    93,458.76/128,968.20 = 51,016.56/x
  3. Step 3: Cross multiply
    93,458.76x = 128,968.20 × 51,016.56
  4. Step 4: Simplify right side
    93,458.76x = 6,579,513,913.39
  5. Step 5: Solve for x
    x = 6,579,513,913.39/93,458.76
  6. Step 6: Final answer
    x = 70,400.18

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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.