Home / 91,631.40-137,362.53-63,564.70

Finding the Fourth Proportional to 91,631.40, 137,362.53 and 63,564.70

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Solution

The fourth proportional to 91,631.40, 137,362.53 and 63,564.70 is: 95,288.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,631.40 : 137,362.53 = 63,564.70 : x
  2. Step 2: Convert to fraction form
    91,631.40/137,362.53 = 63,564.70/x
  3. Step 3: Cross multiply
    91,631.40x = 137,362.53 × 63,564.70
  4. Step 4: Simplify right side
    91,631.40x = 8,731,408,163.21
  5. Step 5: Solve for x
    x = 8,731,408,163.21/91,631.40
  6. Step 6: Final answer
    x = 95,288.38

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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.