Home / 77,685.41-107,205.71-43,693.35

Finding the Fourth Proportional to 77,685.41, 107,205.71 and 43,693.35

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Solution

The fourth proportional to 77,685.41, 107,205.71 and 43,693.35 is: 60,296.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,685.41 : 107,205.71 = 43,693.35 : x
  2. Step 2: Convert to fraction form
    77,685.41/107,205.71 = 43,693.35/x
  3. Step 3: Cross multiply
    77,685.41x = 107,205.71 × 43,693.35
  4. Step 4: Simplify right side
    77,685.41x = 4,684,176,390.56
  5. Step 5: Solve for x
    x = 4,684,176,390.56/77,685.41
  6. Step 6: Final answer
    x = 60,296.74

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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.