Home / 42,798.10-64,212.36-19,103.50

Finding the Fourth Proportional to 42,798.10, 64,212.36 and 19,103.50

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Solution

The fourth proportional to 42,798.10, 64,212.36 and 19,103.50 is: 28,662.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,798.10 : 64,212.36 = 19,103.50 : x
  2. Step 2: Convert to fraction form
    42,798.10/64,212.36 = 19,103.50/x
  3. Step 3: Cross multiply
    42,798.10x = 64,212.36 × 19,103.50
  4. Step 4: Simplify right side
    42,798.10x = 1,226,680,819.26
  5. Step 5: Solve for x
    x = 1,226,680,819.26/42,798.10
  6. Step 6: Final answer
    x = 28,662.04

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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.