Home / 77,608.10-107,108.06-43,156.28

Finding the Fourth Proportional to 77,608.10, 107,108.06 and 43,156.28

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Solution

The fourth proportional to 77,608.10, 107,108.06 and 43,156.28 is: 59,560.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,608.10 : 107,108.06 = 43,156.28 : x
  2. Step 2: Convert to fraction form
    77,608.10/107,108.06 = 43,156.28/x
  3. Step 3: Cross multiply
    77,608.10x = 107,108.06 × 43,156.28
  4. Step 4: Simplify right side
    77,608.10x = 4,622,385,427.62
  5. Step 5: Solve for x
    x = 4,622,385,427.62/77,608.10
  6. Step 6: Final answer
    x = 59,560.61

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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.