Home / 53,280.72-79,930.08-22,118.40

Finding the Fourth Proportional to 53,280.72, 79,930.08 and 22,118.40

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Solution

The fourth proportional to 53,280.72, 79,930.08 and 22,118.40 is: 33,181.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,280.72 : 79,930.08 = 22,118.40 : x
  2. Step 2: Convert to fraction form
    53,280.72/79,930.08 = 22,118.40/x
  3. Step 3: Cross multiply
    53,280.72x = 79,930.08 × 22,118.40
  4. Step 4: Simplify right side
    53,280.72x = 1,767,925,481.47
  5. Step 5: Solve for x
    x = 1,767,925,481.47/53,280.72
  6. Step 6: Final answer
    x = 33,181.34

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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.