Home / 76,864.92-115,303.32-29,502.78

Finding the Fourth Proportional to 76,864.92, 115,303.32 and 29,502.78

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Solution

The fourth proportional to 76,864.92, 115,303.32 and 29,502.78 is: 44,256.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,864.92 : 115,303.32 = 29,502.78 : x
  2. Step 2: Convert to fraction form
    76,864.92/115,303.32 = 29,502.78/x
  3. Step 3: Cross multiply
    76,864.92x = 115,303.32 × 29,502.78
  4. Step 4: Simplify right side
    76,864.92x = 3,401,768,483.23
  5. Step 5: Solve for x
    x = 3,401,768,483.23/76,864.92
  6. Step 6: Final answer
    x = 44,256.45

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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.