Home / 77,131.64-106,429.74-45,297.56

Finding the Fourth Proportional to 77,131.64, 106,429.74 and 45,297.56

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Solution

The fourth proportional to 77,131.64, 106,429.74 and 45,297.56 is: 62,503.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,131.64 : 106,429.74 = 45,297.56 : x
  2. Step 2: Convert to fraction form
    77,131.64/106,429.74 = 45,297.56/x
  3. Step 3: Cross multiply
    77,131.64x = 106,429.74 × 45,297.56
  4. Step 4: Simplify right side
    77,131.64x = 4,821,007,533.43
  5. Step 5: Solve for x
    x = 4,821,007,533.43/77,131.64
  6. Step 6: Final answer
    x = 62,503.63

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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.