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Finding the Fourth Proportional to 57,636.24, 86,412.34 and 38,869.64

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Solution

The fourth proportional to 57,636.24, 86,412.34 and 38,869.64 is: 58,276.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,636.24 : 86,412.34 = 38,869.64 : x
  2. Step 2: Convert to fraction form
    57,636.24/86,412.34 = 38,869.64/x
  3. Step 3: Cross multiply
    57,636.24x = 86,412.34 × 38,869.64
  4. Step 4: Simplify right side
    57,636.24x = 3,358,816,547.36
  5. Step 5: Solve for x
    x = 3,358,816,547.36/57,636.24
  6. Step 6: Final answer
    x = 58,276.12

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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.