Home / 76,971.34-115,435.83-26,369.62

Finding the Fourth Proportional to 76,971.34, 115,435.83 and 26,369.62

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Solution

The fourth proportional to 76,971.34, 115,435.83 and 26,369.62 is: 39,547.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,971.34 : 115,435.83 = 26,369.62 : x
  2. Step 2: Convert to fraction form
    76,971.34/115,435.83 = 26,369.62/x
  3. Step 3: Cross multiply
    76,971.34x = 115,435.83 × 26,369.62
  4. Step 4: Simplify right side
    76,971.34x = 3,043,998,971.48
  5. Step 5: Solve for x
    x = 3,043,998,971.48/76,971.34
  6. Step 6: Final answer
    x = 39,547.17

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1.5x scale

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.