Home / 77,178.14-115,762.73-29,783.96

Finding the Fourth Proportional to 77,178.14, 115,762.73 and 29,783.96

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Solution

The fourth proportional to 77,178.14, 115,762.73 and 29,783.96 is: 44,674.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,178.14 : 115,762.73 = 29,783.96 : x
  2. Step 2: Convert to fraction form
    77,178.14/115,762.73 = 29,783.96/x
  3. Step 3: Cross multiply
    77,178.14x = 115,762.73 × 29,783.96
  4. Step 4: Simplify right side
    77,178.14x = 3,447,872,519.81
  5. Step 5: Solve for x
    x = 3,447,872,519.81/77,178.14
  6. Step 6: Final answer
    x = 44,674.21

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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.