Home / 53,279.37-79,898.18-19,981.28

Finding the Fourth Proportional to 53,279.37, 79,898.18 and 19,981.28

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Solution

The fourth proportional to 53,279.37, 79,898.18 and 19,981.28 is: 29,964.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,279.37 : 79,898.18 = 19,981.28 : x
  2. Step 2: Convert to fraction form
    53,279.37/79,898.18 = 19,981.28/x
  3. Step 3: Cross multiply
    53,279.37x = 79,898.18 × 19,981.28
  4. Step 4: Simplify right side
    53,279.37x = 1,596,467,406.67
  5. Step 5: Solve for x
    x = 1,596,467,406.67/53,279.37
  6. Step 6: Final answer
    x = 29,964.08

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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.