Home / 65,788.58-90,782.73-38,926.42

Finding the Fourth Proportional to 65,788.58, 90,782.73 and 38,926.42

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Solution

The fourth proportional to 65,788.58, 90,782.73 and 38,926.42 is: 53,715.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,788.58 : 90,782.73 = 38,926.42 : x
  2. Step 2: Convert to fraction form
    65,788.58/90,782.73 = 38,926.42/x
  3. Step 3: Cross multiply
    65,788.58x = 90,782.73 × 38,926.42
  4. Step 4: Simplify right side
    65,788.58x = 3,533,846,449.77
  5. Step 5: Solve for x
    x = 3,533,846,449.77/65,788.58
  6. Step 6: Final answer
    x = 53,715.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.