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Finding the Fourth Proportional to 64,657.81, 89,214.40 and 37,795.12

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Solution

The fourth proportional to 64,657.81, 89,214.40 and 37,795.12 is: 52,149.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,657.81 : 89,214.40 = 37,795.12 : x
  2. Step 2: Convert to fraction form
    64,657.81/89,214.40 = 37,795.12/x
  3. Step 3: Cross multiply
    64,657.81x = 89,214.40 × 37,795.12
  4. Step 4: Simplify right side
    64,657.81x = 3,371,868,565.34
  5. Step 5: Solve for x
    x = 3,371,868,565.34/64,657.81
  6. Step 6: Final answer
    x = 52,149.44

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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.