Home / 74,408.04-111,615.45-21,103.83

Finding the Fourth Proportional to 74,408.04, 111,615.45 and 21,103.83

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Solution

The fourth proportional to 74,408.04, 111,615.45 and 21,103.83 is: 31,656.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,408.04 : 111,615.45 = 21,103.83 : x
  2. Step 2: Convert to fraction form
    74,408.04/111,615.45 = 21,103.83/x
  3. Step 3: Cross multiply
    74,408.04x = 111,615.45 × 21,103.83
  4. Step 4: Simplify right side
    74,408.04x = 2,355,513,482.17
  5. Step 5: Solve for x
    x = 2,355,513,482.17/74,408.04
  6. Step 6: Final answer
    x = 31,656.71

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1.5x scale

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.