Home / 78,833.74-118,180.29-28,902.18

Finding the Fourth Proportional to 78,833.74, 118,180.29 and 28,902.18

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Solution

The fourth proportional to 78,833.74, 118,180.29 and 28,902.18 is: 43,327.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,833.74 : 118,180.29 = 28,902.18 : x
  2. Step 2: Convert to fraction form
    78,833.74/118,180.29 = 28,902.18/x
  3. Step 3: Cross multiply
    78,833.74x = 118,180.29 × 28,902.18
  4. Step 4: Simplify right side
    78,833.74x = 3,415,668,014.03
  5. Step 5: Solve for x
    x = 3,415,668,014.03/78,833.74
  6. Step 6: Final answer
    x = 43,327.49

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1.5x scale

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.