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Finding the Fourth Proportional to 64,813.60, 97,208.40 and 18,056.80

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Solution

The fourth proportional to 64,813.60, 97,208.40 and 18,056.80 is: 27,081.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,813.60 : 97,208.40 = 18,056.80 : x
  2. Step 2: Convert to fraction form
    64,813.60/97,208.40 = 18,056.80/x
  3. Step 3: Cross multiply
    64,813.60x = 97,208.40 × 18,056.80
  4. Step 4: Simplify right side
    64,813.60x = 1,755,272,637.12
  5. Step 5: Solve for x
    x = 1,755,272,637.12/64,813.60
  6. Step 6: Final answer
    x = 27,081.86

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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.