Home / 77,513.22-116,272.62-21,357.72

Finding the Fourth Proportional to 77,513.22, 116,272.62 and 21,357.72

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Solution

The fourth proportional to 77,513.22, 116,272.62 and 21,357.72 is: 32,037.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,513.22 : 116,272.62 = 21,357.72 : x
  2. Step 2: Convert to fraction form
    77,513.22/116,272.62 = 21,357.72/x
  3. Step 3: Cross multiply
    77,513.22x = 116,272.62 × 21,357.72
  4. Step 4: Simplify right side
    77,513.22x = 2,483,318,061.63
  5. Step 5: Solve for x
    x = 2,483,318,061.63/77,513.22
  6. Step 6: Final answer
    x = 32,037.35

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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.