Home / 76,663.08-114,977.34-21,263.40

Finding the Fourth Proportional to 76,663.08, 114,977.34 and 21,263.40

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Solution

The fourth proportional to 76,663.08, 114,977.34 and 21,263.40 is: 31,890.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,663.08 : 114,977.34 = 21,263.40 : x
  2. Step 2: Convert to fraction form
    76,663.08/114,977.34 = 21,263.40/x
  3. Step 3: Cross multiply
    76,663.08x = 114,977.34 × 21,263.40
  4. Step 4: Simplify right side
    76,663.08x = 2,444,809,171.36
  5. Step 5: Solve for x
    x = 2,444,809,171.36/76,663.08
  6. Step 6: Final answer
    x = 31,890.31

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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.