Home / 76,139.58-105,075.44-41,686.73

Finding the Fourth Proportional to 76,139.58, 105,075.44 and 41,686.73

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Solution

The fourth proportional to 76,139.58, 105,075.44 and 41,686.73 is: 57,529.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,139.58 : 105,075.44 = 41,686.73 : x
  2. Step 2: Convert to fraction form
    76,139.58/105,075.44 = 41,686.73/x
  3. Step 3: Cross multiply
    76,139.58x = 105,075.44 × 41,686.73
  4. Step 4: Simplify right side
    76,139.58x = 4,380,251,496.91
  5. Step 5: Solve for x
    x = 4,380,251,496.91/76,139.58
  6. Step 6: Final answer
    x = 57,529.23

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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.