Home / 61,922.88-85,416.48-57,775.68

Finding the Fourth Proportional to 61,922.88, 85,416.48 and 57,775.68

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Solution

The fourth proportional to 61,922.88, 85,416.48 and 57,775.68 is: 79,695.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,922.88 : 85,416.48 = 57,775.68 : x
  2. Step 2: Convert to fraction form
    61,922.88/85,416.48 = 57,775.68/x
  3. Step 3: Cross multiply
    61,922.88x = 85,416.48 × 57,775.68
  4. Step 4: Simplify right side
    61,922.88x = 4,934,995,215.21
  5. Step 5: Solve for x
    x = 4,934,995,215.21/61,922.88
  6. Step 6: Final answer
    x = 79,695.83

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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.