Home / 51,730.05-71,386.84-29,072.88

Finding the Fourth Proportional to 51,730.05, 71,386.84 and 29,072.88

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Solution

The fourth proportional to 51,730.05, 71,386.84 and 29,072.88 is: 40,120.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,730.05 : 71,386.84 = 29,072.88 : x
  2. Step 2: Convert to fraction form
    51,730.05/71,386.84 = 29,072.88/x
  3. Step 3: Cross multiply
    51,730.05x = 71,386.84 × 29,072.88
  4. Step 4: Simplify right side
    51,730.05x = 2,075,420,770.40
  5. Step 5: Solve for x
    x = 2,075,420,770.40/51,730.05
  6. Step 6: Final answer
    x = 40,120.21

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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.