Home / 53,298.26-79,859.90-18,218.78

Finding the Fourth Proportional to 53,298.26, 79,859.90 and 18,218.78

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Solution

The fourth proportional to 53,298.26, 79,859.90 and 18,218.78 is: 27,298.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,298.26 : 79,859.90 = 18,218.78 : x
  2. Step 2: Convert to fraction form
    53,298.26/79,859.90 = 18,218.78/x
  3. Step 3: Cross multiply
    53,298.26x = 79,859.90 × 18,218.78
  4. Step 4: Simplify right side
    53,298.26x = 1,454,949,948.92
  5. Step 5: Solve for x
    x = 1,454,949,948.92/53,298.26
  6. Step 6: Final answer
    x = 27,298.26

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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.