Home / 77,520.60-106,977.06-43,529.36

Finding the Fourth Proportional to 77,520.60, 106,977.06 and 43,529.36

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Solution

The fourth proportional to 77,520.60, 106,977.06 and 43,529.36 is: 60,069.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,520.60 : 106,977.06 = 43,529.36 : x
  2. Step 2: Convert to fraction form
    77,520.60/106,977.06 = 43,529.36/x
  3. Step 3: Cross multiply
    77,520.60x = 106,977.06 × 43,529.36
  4. Step 4: Simplify right side
    77,520.60x = 4,656,642,956.48
  5. Step 5: Solve for x
    x = 4,656,642,956.48/77,520.60
  6. Step 6: Final answer
    x = 60,069.75

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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.