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Finding the Fourth Proportional to 52,400.40, 78,600.60 and 39,094.80

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Solution

The fourth proportional to 52,400.40, 78,600.60 and 39,094.80 is: 58,642.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,400.40 : 78,600.60 = 39,094.80 : x
  2. Step 2: Convert to fraction form
    52,400.40/78,600.60 = 39,094.80/x
  3. Step 3: Cross multiply
    52,400.40x = 78,600.60 × 39,094.80
  4. Step 4: Simplify right side
    52,400.40x = 3,072,874,736.88
  5. Step 5: Solve for x
    x = 3,072,874,736.88/52,400.40
  6. Step 6: Final answer
    x = 58,642.20

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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.