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Finding the Fourth Proportional to 64,840.40, 97,260.60 and 18,093.20

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Solution

The fourth proportional to 64,840.40, 97,260.60 and 18,093.20 is: 27,139.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,840.40 : 97,260.60 = 18,093.20 : x
  2. Step 2: Convert to fraction form
    64,840.40/97,260.60 = 18,093.20/x
  3. Step 3: Cross multiply
    64,840.40x = 97,260.60 × 18,093.20
  4. Step 4: Simplify right side
    64,840.40x = 1,759,755,487.92
  5. Step 5: Solve for x
    x = 1,759,755,487.92/64,840.40
  6. Step 6: Final answer
    x = 27,139.80

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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.