Home / 81,951.08-113,124.26-64,051.90

Finding the Fourth Proportional to 81,951.08, 113,124.26 and 64,051.90

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Solution

The fourth proportional to 81,951.08, 113,124.26 and 64,051.90 is: 88,416.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,951.08 : 113,124.26 = 64,051.90 : x
  2. Step 2: Convert to fraction form
    81,951.08/113,124.26 = 64,051.90/x
  3. Step 3: Cross multiply
    81,951.08x = 113,124.26 × 64,051.90
  4. Step 4: Simplify right side
    81,951.08x = 7,245,823,666.41
  5. Step 5: Solve for x
    x = 7,245,823,666.41/81,951.08
  6. Step 6: Final answer
    x = 88,416.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.