Home / 77,066.43-115,599.10-39,636.94

Finding the Fourth Proportional to 77,066.43, 115,599.10 and 39,636.94

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Solution

The fourth proportional to 77,066.43, 115,599.10 and 39,636.94 is: 59,455.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,066.43 : 115,599.10 = 39,636.94 : x
  2. Step 2: Convert to fraction form
    77,066.43/115,599.10 = 39,636.94/x
  3. Step 3: Cross multiply
    77,066.43x = 115,599.10 × 39,636.94
  4. Step 4: Simplify right side
    77,066.43x = 4,581,994,590.75
  5. Step 5: Solve for x
    x = 4,581,994,590.75/77,066.43
  6. Step 6: Final answer
    x = 59,455.13

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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.