Home / 77,436.65-116,108.50-26,819

Finding the Fourth Proportional to 77,436.65, 116,108.50 and 26,819

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Solution

The fourth proportional to 77,436.65, 116,108.50 and 26,819 is: 40,212.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,436.65 : 116,108.50 = 26,819 : x
  2. Step 2: Convert to fraction form
    77,436.65/116,108.50 = 26,819/x
  3. Step 3: Cross multiply
    77,436.65x = 116,108.50 × 26,819
  4. Step 4: Simplify right side
    77,436.65x = 3,113,913,861.50
  5. Step 5: Solve for x
    x = 3,113,913,861.50/77,436.65
  6. Step 6: Final answer
    x = 40,212.40

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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.