Home / 71,316.20-106,974.30-52,653.80

Finding the Fourth Proportional to 71,316.20, 106,974.30 and 52,653.80

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Solution

The fourth proportional to 71,316.20, 106,974.30 and 52,653.80 is: 78,980.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,316.20 : 106,974.30 = 52,653.80 : x
  2. Step 2: Convert to fraction form
    71,316.20/106,974.30 = 52,653.80/x
  3. Step 3: Cross multiply
    71,316.20x = 106,974.30 × 52,653.80
  4. Step 4: Simplify right side
    71,316.20x = 5,632,603,397.34
  5. Step 5: Solve for x
    x = 5,632,603,397.34/71,316.20
  6. Step 6: Final answer
    x = 78,980.70

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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.