Home / 93,423.33-128,890.49-71,919.66

Finding the Fourth Proportional to 93,423.33, 128,890.49 and 71,919.66

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Solution

The fourth proportional to 93,423.33, 128,890.49 and 71,919.66 is: 99,223.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,423.33 : 128,890.49 = 71,919.66 : x
  2. Step 2: Convert to fraction form
    93,423.33/128,890.49 = 71,919.66/x
  3. Step 3: Cross multiply
    93,423.33x = 128,890.49 × 71,919.66
  4. Step 4: Simplify right side
    93,423.33x = 9,269,759,858.44
  5. Step 5: Solve for x
    x = 9,269,759,858.44/93,423.33
  6. Step 6: Final answer
    x = 99,223.18

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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.