Home / 79,021.01-118,387.96-45,670.62

Finding the Fourth Proportional to 79,021.01, 118,387.96 and 45,670.62

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Solution

The fourth proportional to 79,021.01, 118,387.96 and 45,670.62 is: 68,422.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,021.01 : 118,387.96 = 45,670.62 : x
  2. Step 2: Convert to fraction form
    79,021.01/118,387.96 = 45,670.62/x
  3. Step 3: Cross multiply
    79,021.01x = 118,387.96 × 45,670.62
  4. Step 4: Simplify right side
    79,021.01x = 5,406,851,533.74
  5. Step 5: Solve for x
    x = 5,406,851,533.74/79,021.01
  6. Step 6: Final answer
    x = 68,422.96

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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.