Home / 91,711.55-137,778.43-64,756.17

Finding the Fourth Proportional to 91,711.55, 137,778.43 and 64,756.17

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Solution

The fourth proportional to 91,711.55, 137,778.43 and 64,756.17 is: 97,283.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,711.55 : 137,778.43 = 64,756.17 : x
  2. Step 2: Convert to fraction form
    91,711.55/137,778.43 = 64,756.17/x
  3. Step 3: Cross multiply
    91,711.55x = 137,778.43 × 64,756.17
  4. Step 4: Simplify right side
    91,711.55x = 8,922,002,422.74
  5. Step 5: Solve for x
    x = 8,922,002,422.74/91,711.55
  6. Step 6: Final answer
    x = 97,283.31

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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.