Home / 53,134.40-79,651.52-26,455.21

Finding the Fourth Proportional to 53,134.40, 79,651.52 and 26,455.21

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Solution

The fourth proportional to 53,134.40, 79,651.52 and 26,455.21 is: 39,657.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,134.40 : 79,651.52 = 26,455.21 : x
  2. Step 2: Convert to fraction form
    53,134.40/79,651.52 = 26,455.21/x
  3. Step 3: Cross multiply
    53,134.40x = 79,651.52 × 26,455.21
  4. Step 4: Simplify right side
    53,134.40x = 2,107,197,456.22
  5. Step 5: Solve for x
    x = 2,107,197,456.22/53,134.40
  6. Step 6: Final answer
    x = 39,657.87

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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.