Home / 53,302.20-79,931.70-18,223.80

Finding the Fourth Proportional to 53,302.20, 79,931.70 and 18,223.80

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Solution

The fourth proportional to 53,302.20, 79,931.70 and 18,223.80 is: 27,328.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,302.20 : 79,931.70 = 18,223.80 : x
  2. Step 2: Convert to fraction form
    53,302.20/79,931.70 = 18,223.80/x
  3. Step 3: Cross multiply
    53,302.20x = 79,931.70 × 18,223.80
  4. Step 4: Simplify right side
    53,302.20x = 1,456,659,314.46
  5. Step 5: Solve for x
    x = 1,456,659,314.46/53,302.20
  6. Step 6: Final answer
    x = 27,328.32

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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.