Home / 78,715.37-118,072.46-22,555.53

Finding the Fourth Proportional to 78,715.37, 118,072.46 and 22,555.53

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Solution

The fourth proportional to 78,715.37, 118,072.46 and 22,555.53 is: 33,833.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,715.37 : 118,072.46 = 22,555.53 : x
  2. Step 2: Convert to fraction form
    78,715.37/118,072.46 = 22,555.53/x
  3. Step 3: Cross multiply
    78,715.37x = 118,072.46 × 22,555.53
  4. Step 4: Simplify right side
    78,715.37x = 2,663,186,970.09
  5. Step 5: Solve for x
    x = 2,663,186,970.09/78,715.37
  6. Step 6: Final answer
    x = 33,833.12

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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.