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Finding the Fourth Proportional to 93,518.12, 129,013.89 and 55,770.50

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Solution

The fourth proportional to 93,518.12, 129,013.89 and 55,770.50 is: 76,938.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,518.12 : 129,013.89 = 55,770.50 : x
  2. Step 2: Convert to fraction form
    93,518.12/129,013.89 = 55,770.50/x
  3. Step 3: Cross multiply
    93,518.12x = 129,013.89 × 55,770.50
  4. Step 4: Simplify right side
    93,518.12x = 7,195,169,152.25
  5. Step 5: Solve for x
    x = 7,195,169,152.25/93,518.12
  6. Step 6: Final answer
    x = 76,938.77

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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.