Home / 78,571.35-108,154.62-68,482.26

Finding the Fourth Proportional to 78,571.35, 108,154.62 and 68,482.26

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Solution

The fourth proportional to 78,571.35, 108,154.62 and 68,482.26 is: 94,266.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,571.35 : 108,154.62 = 68,482.26 : x
  2. Step 2: Convert to fraction form
    78,571.35/108,154.62 = 68,482.26/x
  3. Step 3: Cross multiply
    78,571.35x = 108,154.62 × 68,482.26
  4. Step 4: Simplify right side
    78,571.35x = 7,406,672,807.04
  5. Step 5: Solve for x
    x = 7,406,672,807.04/78,571.35
  6. Step 6: Final answer
    x = 94,266.84

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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.