Home / 91,701.51-137,530.39-47,305.41

Finding the Fourth Proportional to 91,701.51, 137,530.39 and 47,305.41

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Solution

The fourth proportional to 91,701.51, 137,530.39 and 47,305.41 is: 70,946.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,701.51 : 137,530.39 = 47,305.41 : x
  2. Step 2: Convert to fraction form
    91,701.51/137,530.39 = 47,305.41/x
  3. Step 3: Cross multiply
    91,701.51x = 137,530.39 × 47,305.41
  4. Step 4: Simplify right side
    91,701.51x = 6,505,931,486.41
  5. Step 5: Solve for x
    x = 6,505,931,486.41/91,701.51
  6. Step 6: Final answer
    x = 70,946.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.