Home / 93,151.32-128,565.60-54,908.66

Finding the Fourth Proportional to 93,151.32, 128,565.60 and 54,908.66

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Solution

The fourth proportional to 93,151.32, 128,565.60 and 54,908.66 is: 75,783.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,151.32 : 128,565.60 = 54,908.66 : x
  2. Step 2: Convert to fraction form
    93,151.32/128,565.60 = 54,908.66/x
  3. Step 3: Cross multiply
    93,151.32x = 128,565.60 × 54,908.66
  4. Step 4: Simplify right side
    93,151.32x = 7,059,365,035.30
  5. Step 5: Solve for x
    x = 7,059,365,035.30/93,151.32
  6. Step 6: Final answer
    x = 75,783.85

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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.