Home / 76,536.16-114,804.08-21,132

Finding the Fourth Proportional to 76,536.16, 114,804.08 and 21,132

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Solution

The fourth proportional to 76,536.16, 114,804.08 and 21,132 is: 31,697.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,536.16 : 114,804.08 = 21,132 : x
  2. Step 2: Convert to fraction form
    76,536.16/114,804.08 = 21,132/x
  3. Step 3: Cross multiply
    76,536.16x = 114,804.08 × 21,132
  4. Step 4: Simplify right side
    76,536.16x = 2,426,039,818.56
  5. Step 5: Solve for x
    x = 2,426,039,818.56/76,536.16
  6. Step 6: Final answer
    x = 31,697.96

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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.