Home / 70,433.08-105,661.93-30,989.17

Finding the Fourth Proportional to 70,433.08, 105,661.93 and 30,989.17

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Solution

The fourth proportional to 70,433.08, 105,661.93 and 30,989.17 is: 46,489.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,433.08 : 105,661.93 = 30,989.17 : x
  2. Step 2: Convert to fraction form
    70,433.08/105,661.93 = 30,989.17/x
  3. Step 3: Cross multiply
    70,433.08x = 105,661.93 × 30,989.17
  4. Step 4: Simplify right side
    70,433.08x = 3,274,375,356.35
  5. Step 5: Solve for x
    x = 3,274,375,356.35/70,433.08
  6. Step 6: Final answer
    x = 46,489.17

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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.