Home / 79,157.07-118,734.39-31,784.22

Finding the Fourth Proportional to 79,157.07, 118,734.39 and 31,784.22

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Solution

The fourth proportional to 79,157.07, 118,734.39 and 31,784.22 is: 47,675.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,157.07 : 118,734.39 = 31,784.22 : x
  2. Step 2: Convert to fraction form
    79,157.07/118,734.39 = 31,784.22/x
  3. Step 3: Cross multiply
    79,157.07x = 118,734.39 × 31,784.22
  4. Step 4: Simplify right side
    79,157.07x = 3,773,879,973.33
  5. Step 5: Solve for x
    x = 3,773,879,973.33/79,157.07
  6. Step 6: Final answer
    x = 47,675.84

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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.