Home / 77,475.84-106,911.36-43,480.32

Finding the Fourth Proportional to 77,475.84, 106,911.36 and 43,480.32

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Solution

The fourth proportional to 77,475.84, 106,911.36 and 43,480.32 is: 59,999.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,475.84 : 106,911.36 = 43,480.32 : x
  2. Step 2: Convert to fraction form
    77,475.84/106,911.36 = 43,480.32/x
  3. Step 3: Cross multiply
    77,475.84x = 106,911.36 × 43,480.32
  4. Step 4: Simplify right side
    77,475.84x = 4,648,540,144.44
  5. Step 5: Solve for x
    x = 4,648,540,144.44/77,475.84
  6. Step 6: Final answer
    x = 59,999.87

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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.