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Finding the Fourth Proportional to 84,897.87, 117,152.20 and 49,090.20

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Solution

The fourth proportional to 84,897.87, 117,152.20 and 49,090.20 is: 67,740.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,897.87 : 117,152.20 = 49,090.20 : x
  2. Step 2: Convert to fraction form
    84,897.87/117,152.20 = 49,090.20/x
  3. Step 3: Cross multiply
    84,897.87x = 117,152.20 × 49,090.20
  4. Step 4: Simplify right side
    84,897.87x = 5,751,024,928.44
  5. Step 5: Solve for x
    x = 5,751,024,928.44/84,897.87
  6. Step 6: Final answer
    x = 67,740.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.