Home / 93,219.72-128,645.20-50,778.16

Finding the Fourth Proportional to 93,219.72, 128,645.20 and 50,778.16

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Solution

The fourth proportional to 93,219.72, 128,645.20 and 50,778.16 is: 70,074.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,219.72 : 128,645.20 = 50,778.16 : x
  2. Step 2: Convert to fraction form
    93,219.72/128,645.20 = 50,778.16/x
  3. Step 3: Cross multiply
    93,219.72x = 128,645.20 × 50,778.16
  4. Step 4: Simplify right side
    93,219.72x = 6,532,366,548.83
  5. Step 5: Solve for x
    x = 6,532,366,548.83/93,219.72
  6. Step 6: Final answer
    x = 70,074.94

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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.