Home / 78,886.20-118,329.30-37,414.20

Finding the Fourth Proportional to 78,886.20, 118,329.30 and 37,414.20

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Solution

The fourth proportional to 78,886.20, 118,329.30 and 37,414.20 is: 56,121.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,886.20 : 118,329.30 = 37,414.20 : x
  2. Step 2: Convert to fraction form
    78,886.20/118,329.30 = 37,414.20/x
  3. Step 3: Cross multiply
    78,886.20x = 118,329.30 × 37,414.20
  4. Step 4: Simplify right side
    78,886.20x = 4,427,196,096.06
  5. Step 5: Solve for x
    x = 4,427,196,096.06/78,886.20
  6. Step 6: Final answer
    x = 56,121.30

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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.