Home / 45,698.08-68,581.74-19,421.32

Finding the Fourth Proportional to 45,698.08, 68,581.74 and 19,421.32

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Solution

The fourth proportional to 45,698.08, 68,581.74 and 19,421.32 is: 29,146.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,698.08 : 68,581.74 = 19,421.32 : x
  2. Step 2: Convert to fraction form
    45,698.08/68,581.74 = 19,421.32/x
  3. Step 3: Cross multiply
    45,698.08x = 68,581.74 × 19,421.32
  4. Step 4: Simplify right side
    45,698.08x = 1,331,947,918.70
  5. Step 5: Solve for x
    x = 1,331,947,918.70/45,698.08
  6. Step 6: Final answer
    x = 29,146.69

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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.