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Finding the Fourth Proportional to 40,768.35, 61,160.78 and 14,475.16

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Solution

The fourth proportional to 40,768.35, 61,160.78 and 14,475.16 is: 21,715.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,768.35 : 61,160.78 = 14,475.16 : x
  2. Step 2: Convert to fraction form
    40,768.35/61,160.78 = 14,475.16/x
  3. Step 3: Cross multiply
    40,768.35x = 61,160.78 × 14,475.16
  4. Step 4: Simplify right side
    40,768.35x = 885,312,076.22
  5. Step 5: Solve for x
    x = 885,312,076.22/40,768.35
  6. Step 6: Final answer
    x = 21,715.67

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.