Home / 79,234.02-118,855.36-20,070.21

Finding the Fourth Proportional to 79,234.02, 118,855.36 and 20,070.21

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Solution

The fourth proportional to 79,234.02, 118,855.36 and 20,070.21 is: 30,106.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,234.02 : 118,855.36 = 20,070.21 : x
  2. Step 2: Convert to fraction form
    79,234.02/118,855.36 = 20,070.21/x
  3. Step 3: Cross multiply
    79,234.02x = 118,855.36 × 20,070.21
  4. Step 4: Simplify right side
    79,234.02x = 2,385,451,531.00
  5. Step 5: Solve for x
    x = 2,385,451,531.00/79,234.02
  6. Step 6: Final answer
    x = 30,106.40

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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.