Home / 93,317.94-128,778.75-53,031.78

Finding the Fourth Proportional to 93,317.94, 128,778.75 and 53,031.78

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Solution

The fourth proportional to 93,317.94, 128,778.75 and 53,031.78 is: 73,183.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,317.94 : 128,778.75 = 53,031.78 : x
  2. Step 2: Convert to fraction form
    93,317.94/128,778.75 = 53,031.78/x
  3. Step 3: Cross multiply
    93,317.94x = 128,778.75 × 53,031.78
  4. Step 4: Simplify right side
    93,317.94x = 6,829,365,694.78
  5. Step 5: Solve for x
    x = 6,829,365,694.78/93,317.94
  6. Step 6: Final answer
    x = 73,183.85

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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.