Home / 115,075.35-172,611.41-31,969.35

Finding the Fourth Proportional to 115,075.35, 172,611.41 and 31,969.35

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Solution

The fourth proportional to 115,075.35, 172,611.41 and 31,969.35 is: 47,953.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,075.35 : 172,611.41 = 31,969.35 : x
  2. Step 2: Convert to fraction form
    115,075.35/172,611.41 = 31,969.35/x
  3. Step 3: Cross multiply
    115,075.35x = 172,611.41 × 31,969.35
  4. Step 4: Simplify right side
    115,075.35x = 5,518,274,420.44
  5. Step 5: Solve for x
    x = 5,518,274,420.44/115,075.35
  6. Step 6: Final answer
    x = 47,953.57

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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.