Home / 81,106.02-121,692.75-33,731.49

Finding the Fourth Proportional to 81,106.02, 121,692.75 and 33,731.49

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Solution

The fourth proportional to 81,106.02, 121,692.75 and 33,731.49 is: 50,611.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,106.02 : 121,692.75 = 33,731.49 : x
  2. Step 2: Convert to fraction form
    81,106.02/121,692.75 = 33,731.49/x
  3. Step 3: Cross multiply
    81,106.02x = 121,692.75 × 33,731.49
  4. Step 4: Simplify right side
    81,106.02x = 4,104,877,779.70
  5. Step 5: Solve for x
    x = 4,104,877,779.70/81,106.02
  6. Step 6: Final answer
    x = 50,611.26

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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.