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Finding the Fourth Proportional to 43,175, 64,762.50 and 12,011.06

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Solution

The fourth proportional to 43,175, 64,762.50 and 12,011.06 is: 18,016.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,175 : 64,762.50 = 12,011.06 : x
  2. Step 2: Convert to fraction form
    43,175/64,762.50 = 12,011.06/x
  3. Step 3: Cross multiply
    43,175x = 64,762.50 × 12,011.06
  4. Step 4: Simplify right side
    43,175x = 777,866,273.25
  5. Step 5: Solve for x
    x = 777,866,273.25/43,175
  6. Step 6: Final answer
    x = 18,016.59

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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.