Home / 76,529.16-114,795.90-21,125.16

Finding the Fourth Proportional to 76,529.16, 114,795.90 and 21,125.16

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Solution

The fourth proportional to 76,529.16, 114,795.90 and 21,125.16 is: 31,688.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,529.16 : 114,795.90 = 21,125.16 : x
  2. Step 2: Convert to fraction form
    76,529.16/114,795.90 = 21,125.16/x
  3. Step 3: Cross multiply
    76,529.16x = 114,795.90 × 21,125.16
  4. Step 4: Simplify right side
    76,529.16x = 2,425,081,754.84
  5. Step 5: Solve for x
    x = 2,425,081,754.84/76,529.16
  6. Step 6: Final answer
    x = 31,688.34

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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.