Home / 76,777.42-114,565.54-68,798.63

Finding the Fourth Proportional to 76,777.42, 114,565.54 and 68,798.63

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Solution

The fourth proportional to 76,777.42, 114,565.54 and 68,798.63 is: 102,659.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,777.42 : 114,565.54 = 68,798.63 : x
  2. Step 2: Convert to fraction form
    76,777.42/114,565.54 = 68,798.63/x
  3. Step 3: Cross multiply
    76,777.42x = 114,565.54 × 68,798.63
  4. Step 4: Simplify right side
    76,777.42x = 7,881,952,197.21
  5. Step 5: Solve for x
    x = 7,881,952,197.21/76,777.42
  6. Step 6: Final answer
    x = 102,659.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.