Home / 76,147.25-105,080.57-42,157.22

Finding the Fourth Proportional to 76,147.25, 105,080.57 and 42,157.22

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Solution

The fourth proportional to 76,147.25, 105,080.57 and 42,157.22 is: 58,175.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,147.25 : 105,080.57 = 42,157.22 : x
  2. Step 2: Convert to fraction form
    76,147.25/105,080.57 = 42,157.22/x
  3. Step 3: Cross multiply
    76,147.25x = 105,080.57 × 42,157.22
  4. Step 4: Simplify right side
    76,147.25x = 4,429,904,707.22
  5. Step 5: Solve for x
    x = 4,429,904,707.22/76,147.25
  6. Step 6: Final answer
    x = 58,175.50

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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.