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Finding the Fourth Proportional to 65,293.60, 97,940.40 and 38,984.80

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Solution

The fourth proportional to 65,293.60, 97,940.40 and 38,984.80 is: 58,477.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,293.60 : 97,940.40 = 38,984.80 : x
  2. Step 2: Convert to fraction form
    65,293.60/97,940.40 = 38,984.80/x
  3. Step 3: Cross multiply
    65,293.60x = 97,940.40 × 38,984.80
  4. Step 4: Simplify right side
    65,293.60x = 3,818,186,905.92
  5. Step 5: Solve for x
    x = 3,818,186,905.92/65,293.60
  6. Step 6: Final answer
    x = 58,477.20

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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.