Home / 84,185.60-126,273.44-31,590.64

Finding the Fourth Proportional to 84,185.60, 126,273.44 and 31,590.64

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Solution

The fourth proportional to 84,185.60, 126,273.44 and 31,590.64 is: 47,384.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,185.60 : 126,273.44 = 31,590.64 : x
  2. Step 2: Convert to fraction form
    84,185.60/126,273.44 = 31,590.64/x
  3. Step 3: Cross multiply
    84,185.60x = 126,273.44 × 31,590.64
  4. Step 4: Simplify right side
    84,185.60x = 3,989,058,784.60
  5. Step 5: Solve for x
    x = 3,989,058,784.60/84,185.60
  6. Step 6: Final answer
    x = 47,384.10

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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.