Home / 93,517.20-129,021.72-53,220.87

Finding the Fourth Proportional to 93,517.20, 129,021.72 and 53,220.87

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Solution

The fourth proportional to 93,517.20, 129,021.72 and 53,220.87 is: 73,426.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,517.20 : 129,021.72 = 53,220.87 : x
  2. Step 2: Convert to fraction form
    93,517.20/129,021.72 = 53,220.87/x
  3. Step 3: Cross multiply
    93,517.20x = 129,021.72 × 53,220.87
  4. Step 4: Simplify right side
    93,517.20x = 6,866,648,724.80
  5. Step 5: Solve for x
    x = 6,866,648,724.80/93,517.20
  6. Step 6: Final answer
    x = 73,426.58

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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.