Home / 78,802.20-118,217.88-25,508.25

Finding the Fourth Proportional to 78,802.20, 118,217.88 and 25,508.25

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Solution

The fourth proportional to 78,802.20, 118,217.88 and 25,508.25 is: 38,267.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,802.20 : 118,217.88 = 25,508.25 : x
  2. Step 2: Convert to fraction form
    78,802.20/118,217.88 = 25,508.25/x
  3. Step 3: Cross multiply
    78,802.20x = 118,217.88 × 25,508.25
  4. Step 4: Simplify right side
    78,802.20x = 3,015,531,237.51
  5. Step 5: Solve for x
    x = 3,015,531,237.51/78,802.20
  6. Step 6: Final answer
    x = 38,267.09

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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.