Home / 78,817.56-118,225.10-36,674.07

Finding the Fourth Proportional to 78,817.56, 118,225.10 and 36,674.07

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Solution

The fourth proportional to 78,817.56, 118,225.10 and 36,674.07 is: 55,010.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,817.56 : 118,225.10 = 36,674.07 : x
  2. Step 2: Convert to fraction form
    78,817.56/118,225.10 = 36,674.07/x
  3. Step 3: Cross multiply
    78,817.56x = 118,225.10 × 36,674.07
  4. Step 4: Simplify right side
    78,817.56x = 4,335,795,409.79
  5. Step 5: Solve for x
    x = 4,335,795,409.79/78,817.56
  6. Step 6: Final answer
    x = 55,010.53

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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.