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Finding the Fourth Proportional to 97,328.80, 145,892.40 and 52,861.60

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Solution

The fourth proportional to 97,328.80, 145,892.40 and 52,861.60 is: 79,237.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,328.80 : 145,892.40 = 52,861.60 : x
  2. Step 2: Convert to fraction form
    97,328.80/145,892.40 = 52,861.60/x
  3. Step 3: Cross multiply
    97,328.80x = 145,892.40 × 52,861.60
  4. Step 4: Simplify right side
    97,328.80x = 7,712,105,691.84
  5. Step 5: Solve for x
    x = 7,712,105,691.84/97,328.80
  6. Step 6: Final answer
    x = 79,237.65

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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.