Home / 84,336.72-126,242.64-53,106.36

Finding the Fourth Proportional to 84,336.72, 126,242.64 and 53,106.36

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Solution

The fourth proportional to 84,336.72, 126,242.64 and 53,106.36 is: 79,494.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,336.72 : 126,242.64 = 53,106.36 : x
  2. Step 2: Convert to fraction form
    84,336.72/126,242.64 = 53,106.36/x
  3. Step 3: Cross multiply
    84,336.72x = 126,242.64 × 53,106.36
  4. Step 4: Simplify right side
    84,336.72x = 6,704,287,087.19
  5. Step 5: Solve for x
    x = 6,704,287,087.19/84,336.72
  6. Step 6: Final answer
    x = 79,494.28

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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.