Home / 73,075.50-109,611.36-19,772.64

Finding the Fourth Proportional to 73,075.50, 109,611.36 and 19,772.64

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Solution

The fourth proportional to 73,075.50, 109,611.36 and 19,772.64 is: 29,658.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,075.50 : 109,611.36 = 19,772.64 : x
  2. Step 2: Convert to fraction form
    73,075.50/109,611.36 = 19,772.64/x
  3. Step 3: Cross multiply
    73,075.50x = 109,611.36 × 19,772.64
  4. Step 4: Simplify right side
    73,075.50x = 2,167,305,961.19
  5. Step 5: Solve for x
    x = 2,167,305,961.19/73,075.50
  6. Step 6: Final answer
    x = 29,658.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.