Home / 64,813.82-97,220.75-20,445.08

Finding the Fourth Proportional to 64,813.82, 97,220.75 and 20,445.08

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Solution

The fourth proportional to 64,813.82, 97,220.75 and 20,445.08 is: 30,667.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,813.82 : 97,220.75 = 20,445.08 : x
  2. Step 2: Convert to fraction form
    64,813.82/97,220.75 = 20,445.08/x
  3. Step 3: Cross multiply
    64,813.82x = 97,220.75 × 20,445.08
  4. Step 4: Simplify right side
    64,813.82x = 1,987,685,423.08
  5. Step 5: Solve for x
    x = 1,987,685,423.08/64,813.82
  6. Step 6: Final answer
    x = 30,667.62

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Similar ratio
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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.