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Finding the Fourth Proportional to 53,300.70, 79,929.45 and 18,222.30

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Solution

The fourth proportional to 53,300.70, 79,929.45 and 18,222.30 is: 27,326.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,300.70 : 79,929.45 = 18,222.30 : x
  2. Step 2: Convert to fraction form
    53,300.70/79,929.45 = 18,222.30/x
  3. Step 3: Cross multiply
    53,300.70x = 79,929.45 × 18,222.30
  4. Step 4: Simplify right side
    53,300.70x = 1,456,498,416.74
  5. Step 5: Solve for x
    x = 1,456,498,416.74/53,300.70
  6. Step 6: Final answer
    x = 27,326.07

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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.