Home / 68,427.37-102,656.27-21,047.23

Finding the Fourth Proportional to 68,427.37, 102,656.27 and 21,047.23

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Solution

The fourth proportional to 68,427.37, 102,656.27 and 21,047.23 is: 31,575.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,427.37 : 102,656.27 = 21,047.23 : x
  2. Step 2: Convert to fraction form
    68,427.37/102,656.27 = 21,047.23/x
  3. Step 3: Cross multiply
    68,427.37x = 102,656.27 × 21,047.23
  4. Step 4: Simplify right side
    68,427.37x = 2,160,630,125.63
  5. Step 5: Solve for x
    x = 2,160,630,125.63/68,427.37
  6. Step 6: Final answer
    x = 31,575.52

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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.