Home / 93,386.39-128,876.83-53,103.81

Finding the Fourth Proportional to 93,386.39, 128,876.83 and 53,103.81

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Solution

The fourth proportional to 93,386.39, 128,876.83 and 53,103.81 is: 73,285.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,386.39 : 128,876.83 = 53,103.81 : x
  2. Step 2: Convert to fraction form
    93,386.39/128,876.83 = 53,103.81/x
  3. Step 3: Cross multiply
    93,386.39x = 128,876.83 × 53,103.81
  4. Step 4: Simplify right side
    93,386.39x = 6,843,850,560.96
  5. Step 5: Solve for x
    x = 6,843,850,560.96/93,386.39
  6. Step 6: Final answer
    x = 73,285.31

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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.