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Finding the Fourth Proportional to 93,214, 128,645.04 and 52,938.64

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Solution

The fourth proportional to 93,214, 128,645.04 and 52,938.64 is: 73,060.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,214 : 128,645.04 = 52,938.64 : x
  2. Step 2: Convert to fraction form
    93,214/128,645.04 = 52,938.64/x
  3. Step 3: Cross multiply
    93,214x = 128,645.04 × 52,938.64
  4. Step 4: Simplify right side
    93,214x = 6,810,293,460.35
  5. Step 5: Solve for x
    x = 6,810,293,460.35/93,214
  6. Step 6: Final answer
    x = 73,060.84

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Why These Related Problems?

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