Home / 84,458.72-126,666.48-31,852.64

Finding the Fourth Proportional to 84,458.72, 126,666.48 and 31,852.64

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Solution

The fourth proportional to 84,458.72, 126,666.48 and 31,852.64 is: 47,770.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,458.72 : 126,666.48 = 31,852.64 : x
  2. Step 2: Convert to fraction form
    84,458.72/126,666.48 = 31,852.64/x
  3. Step 3: Cross multiply
    84,458.72x = 126,666.48 × 31,852.64
  4. Step 4: Simplify right side
    84,458.72x = 4,034,661,787.51
  5. Step 5: Solve for x
    x = 4,034,661,787.51/84,458.72
  6. Step 6: Final answer
    x = 47,770.81

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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.