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Finding the Fourth Proportional to 103,704, 155,579.04 and 38,040

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Solution

The fourth proportional to 103,704, 155,579.04 and 38,040 is: 57,068.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,704 : 155,579.04 = 38,040 : x
  2. Step 2: Convert to fraction form
    103,704/155,579.04 = 38,040/x
  3. Step 3: Cross multiply
    103,704x = 155,579.04 × 38,040
  4. Step 4: Simplify right side
    103,704x = 5,918,226,681.60
  5. Step 5: Solve for x
    x = 5,918,226,681.60/103,704
  6. Step 6: Final answer
    x = 57,068.45

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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.