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Finding the Fourth Proportional to 73,850.63, 101,657.31 and 64,402.79

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Solution

The fourth proportional to 73,850.63, 101,657.31 and 64,402.79 is: 88,652.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,850.63 : 101,657.31 = 64,402.79 : x
  2. Step 2: Convert to fraction form
    73,850.63/101,657.31 = 64,402.79/x
  3. Step 3: Cross multiply
    73,850.63x = 101,657.31 × 64,402.79
  4. Step 4: Simplify right side
    73,850.63x = 6,547,014,387.89
  5. Step 5: Solve for x
    x = 6,547,014,387.89/73,850.63
  6. Step 6: Final answer
    x = 88,652.11

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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.