Home / 84,537.36-126,807.48-31,971.60

Finding the Fourth Proportional to 84,537.36, 126,807.48 and 31,971.60

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Solution

The fourth proportional to 84,537.36, 126,807.48 and 31,971.60 is: 47,957.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,537.36 : 126,807.48 = 31,971.60 : x
  2. Step 2: Convert to fraction form
    84,537.36/126,807.48 = 31,971.60/x
  3. Step 3: Cross multiply
    84,537.36x = 126,807.48 × 31,971.60
  4. Step 4: Simplify right side
    84,537.36x = 4,054,238,027.57
  5. Step 5: Solve for x
    x = 4,054,238,027.57/84,537.36
  6. Step 6: Final answer
    x = 47,957.94

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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.