Home / 93,389.52-128,876.93-53,103.28

Finding the Fourth Proportional to 93,389.52, 128,876.93 and 53,103.28

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Solution

The fourth proportional to 93,389.52, 128,876.93 and 53,103.28 is: 73,282.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,389.52 : 128,876.93 = 53,103.28 : x
  2. Step 2: Convert to fraction form
    93,389.52/128,876.93 = 53,103.28/x
  3. Step 3: Cross multiply
    93,389.52x = 128,876.93 × 53,103.28
  4. Step 4: Simplify right side
    93,389.52x = 6,843,787,699.33
  5. Step 5: Solve for x
    x = 6,843,787,699.33/93,389.52
  6. Step 6: Final answer
    x = 73,282.18

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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.