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Finding the Fourth Proportional to 64,705.69, 97,068.32 and 20,328.27

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Solution

The fourth proportional to 64,705.69, 97,068.32 and 20,328.27 is: 30,495.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,705.69 : 97,068.32 = 20,328.27 : x
  2. Step 2: Convert to fraction form
    64,705.69/97,068.32 = 20,328.27/x
  3. Step 3: Cross multiply
    64,705.69x = 97,068.32 × 20,328.27
  4. Step 4: Simplify right side
    64,705.69x = 1,973,230,742.34
  5. Step 5: Solve for x
    x = 1,973,230,742.34/64,705.69
  6. Step 6: Final answer
    x = 30,495.48

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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.