Home / 53,245.24-79,890.54-19,981.24

Finding the Fourth Proportional to 53,245.24, 79,890.54 and 19,981.24

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Solution

The fourth proportional to 53,245.24, 79,890.54 and 19,981.24 is: 29,980.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,245.24 : 79,890.54 = 19,981.24 : x
  2. Step 2: Convert to fraction form
    53,245.24/79,890.54 = 19,981.24/x
  3. Step 3: Cross multiply
    53,245.24x = 79,890.54 × 19,981.24
  4. Step 4: Simplify right side
    53,245.24x = 1,596,312,053.47
  5. Step 5: Solve for x
    x = 1,596,312,053.47/53,245.24
  6. Step 6: Final answer
    x = 29,980.37

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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.