Home / 74,902.63-112,354.24-18,742.58

Finding the Fourth Proportional to 74,902.63, 112,354.24 and 18,742.58

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Solution

The fourth proportional to 74,902.63, 112,354.24 and 18,742.58 is: 28,113.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,902.63 : 112,354.24 = 18,742.58 : x
  2. Step 2: Convert to fraction form
    74,902.63/112,354.24 = 18,742.58/x
  3. Step 3: Cross multiply
    74,902.63x = 112,354.24 × 18,742.58
  4. Step 4: Simplify right side
    74,902.63x = 2,105,808,021.38
  5. Step 5: Solve for x
    x = 2,105,808,021.38/74,902.63
  6. Step 6: Final answer
    x = 28,113.94

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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.