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Finding the Fourth Proportional to 61,667.80, 92,501.70 and 43,005.40

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Solution

The fourth proportional to 61,667.80, 92,501.70 and 43,005.40 is: 64,508.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,667.80 : 92,501.70 = 43,005.40 : x
  2. Step 2: Convert to fraction form
    61,667.80/92,501.70 = 43,005.40/x
  3. Step 3: Cross multiply
    61,667.80x = 92,501.70 × 43,005.40
  4. Step 4: Simplify right side
    61,667.80x = 3,978,072,609.18
  5. Step 5: Solve for x
    x = 3,978,072,609.18/61,667.80
  6. Step 6: Final answer
    x = 64,508.10

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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.