Home / 91,696.77-137,637.90-47,355.21

Finding the Fourth Proportional to 91,696.77, 137,637.90 and 47,355.21

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Solution

The fourth proportional to 91,696.77, 137,637.90 and 47,355.21 is: 71,080.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,696.77 : 137,637.90 = 47,355.21 : x
  2. Step 2: Convert to fraction form
    91,696.77/137,637.90 = 47,355.21/x
  3. Step 3: Cross multiply
    91,696.77x = 137,637.90 × 47,355.21
  4. Step 4: Simplify right side
    91,696.77x = 6,517,871,658.46
  5. Step 5: Solve for x
    x = 6,517,871,658.46/91,696.77
  6. Step 6: Final answer
    x = 71,080.71

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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.