Home / 83,904.69-115,777.94-56,739.87

Finding the Fourth Proportional to 83,904.69, 115,777.94 and 56,739.87

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Solution

The fourth proportional to 83,904.69, 115,777.94 and 56,739.87 is: 78,293.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,904.69 : 115,777.94 = 56,739.87 : x
  2. Step 2: Convert to fraction form
    83,904.69/115,777.94 = 56,739.87/x
  3. Step 3: Cross multiply
    83,904.69x = 115,777.94 × 56,739.87
  4. Step 4: Simplify right side
    83,904.69x = 6,569,225,264.47
  5. Step 5: Solve for x
    x = 6,569,225,264.47/83,904.69
  6. Step 6: Final answer
    x = 78,293.90

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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.