Home / 79,918.80-110,268.72-51,225.36

Finding the Fourth Proportional to 79,918.80, 110,268.72 and 51,225.36

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Solution

The fourth proportional to 79,918.80, 110,268.72 and 51,225.36 is: 70,678.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,918.80 : 110,268.72 = 51,225.36 : x
  2. Step 2: Convert to fraction form
    79,918.80/110,268.72 = 51,225.36/x
  3. Step 3: Cross multiply
    79,918.80x = 110,268.72 × 51,225.36
  4. Step 4: Simplify right side
    79,918.80x = 5,648,554,878.74
  5. Step 5: Solve for x
    x = 5,648,554,878.74/79,918.80
  6. Step 6: Final answer
    x = 70,678.67

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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.