Home / 93,345.10-128,816.13-55,104.70

Finding the Fourth Proportional to 93,345.10, 128,816.13 and 55,104.70

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Solution

The fourth proportional to 93,345.10, 128,816.13 and 55,104.70 is: 76,044.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,345.10 : 128,816.13 = 55,104.70 : x
  2. Step 2: Convert to fraction form
    93,345.10/128,816.13 = 55,104.70/x
  3. Step 3: Cross multiply
    93,345.10x = 128,816.13 × 55,104.70
  4. Step 4: Simplify right side
    93,345.10x = 7,098,374,198.81
  5. Step 5: Solve for x
    x = 7,098,374,198.81/93,345.10
  6. Step 6: Final answer
    x = 76,044.42

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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.