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Finding the Fourth Proportional to 70,500.50, 97,290 and 38,668.70

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Solution

The fourth proportional to 70,500.50, 97,290 and 38,668.70 is: 53,362.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,500.50 : 97,290 = 38,668.70 : x
  2. Step 2: Convert to fraction form
    70,500.50/97,290 = 38,668.70/x
  3. Step 3: Cross multiply
    70,500.50x = 97,290 × 38,668.70
  4. Step 4: Simplify right side
    70,500.50x = 3,762,077,823.00
  5. Step 5: Solve for x
    x = 3,762,077,823.00/70,500.50
  6. Step 6: Final answer
    x = 53,362.43

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