Home / 76,890.56-106,108.80-43,356.32

Finding the Fourth Proportional to 76,890.56, 106,108.80 and 43,356.32

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Solution

The fourth proportional to 76,890.56, 106,108.80 and 43,356.32 is: 59,831.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,890.56 : 106,108.80 = 43,356.32 : x
  2. Step 2: Convert to fraction form
    76,890.56/106,108.80 = 43,356.32/x
  3. Step 3: Cross multiply
    76,890.56x = 106,108.80 × 43,356.32
  4. Step 4: Simplify right side
    76,890.56x = 4,600,487,087.62
  5. Step 5: Solve for x
    x = 4,600,487,087.62/76,890.56
  6. Step 6: Final answer
    x = 59,831.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.