Home / 66,317.81-91,515.76-36,102.50

Finding the Fourth Proportional to 66,317.81, 91,515.76 and 36,102.50

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Solution

The fourth proportional to 66,317.81, 91,515.76 and 36,102.50 is: 49,819.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,317.81 : 91,515.76 = 36,102.50 : x
  2. Step 2: Convert to fraction form
    66,317.81/91,515.76 = 36,102.50/x
  3. Step 3: Cross multiply
    66,317.81x = 91,515.76 × 36,102.50
  4. Step 4: Simplify right side
    66,317.81x = 3,303,947,725.40
  5. Step 5: Solve for x
    x = 3,303,947,725.40/66,317.81
  6. Step 6: Final answer
    x = 49,819.92

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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.