Home / 76,639.68-114,970.34-26,712.48

Finding the Fourth Proportional to 76,639.68, 114,970.34 and 26,712.48

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Solution

The fourth proportional to 76,639.68, 114,970.34 and 26,712.48 is: 40,072.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,639.68 : 114,970.34 = 26,712.48 : x
  2. Step 2: Convert to fraction form
    76,639.68/114,970.34 = 26,712.48/x
  3. Step 3: Cross multiply
    76,639.68x = 114,970.34 × 26,712.48
  4. Step 4: Simplify right side
    76,639.68x = 3,071,142,774.28
  5. Step 5: Solve for x
    x = 3,071,142,774.28/76,639.68
  6. Step 6: Final answer
    x = 40,072.49

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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.