Home / 52,205.10-71,988.58-30,980.26

Finding the Fourth Proportional to 52,205.10, 71,988.58 and 30,980.26

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Solution

The fourth proportional to 52,205.10, 71,988.58 and 30,980.26 is: 42,720.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,205.10 : 71,988.58 = 30,980.26 : x
  2. Step 2: Convert to fraction form
    52,205.10/71,988.58 = 30,980.26/x
  3. Step 3: Cross multiply
    52,205.10x = 71,988.58 × 30,980.26
  4. Step 4: Simplify right side
    52,205.10x = 2,230,224,770.53
  5. Step 5: Solve for x
    x = 2,230,224,770.53/52,205.10
  6. Step 6: Final answer
    x = 42,720.44

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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.