Home / 79,308.65-109,451.70-45,316.36

Finding the Fourth Proportional to 79,308.65, 109,451.70 and 45,316.36

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Solution

The fourth proportional to 79,308.65, 109,451.70 and 45,316.36 is: 62,539.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,308.65 : 109,451.70 = 45,316.36 : x
  2. Step 2: Convert to fraction form
    79,308.65/109,451.70 = 45,316.36/x
  3. Step 3: Cross multiply
    79,308.65x = 109,451.70 × 45,316.36
  4. Step 4: Simplify right side
    79,308.65x = 4,959,952,743.39
  5. Step 5: Solve for x
    x = 4,959,952,743.39/79,308.65
  6. Step 6: Final answer
    x = 62,539.87

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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.