Home / 75,045-112,442.76-52,811.64

Finding the Fourth Proportional to 75,045, 112,442.76 and 52,811.64

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Solution

The fourth proportional to 75,045, 112,442.76 and 52,811.64 is: 79,129.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,045 : 112,442.76 = 52,811.64 : x
  2. Step 2: Convert to fraction form
    75,045/112,442.76 = 52,811.64/x
  3. Step 3: Cross multiply
    75,045x = 112,442.76 × 52,811.64
  4. Step 4: Simplify right side
    75,045x = 5,938,286,561.73
  5. Step 5: Solve for x
    x = 5,938,286,561.73/75,045
  6. Step 6: Final answer
    x = 79,129.68

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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.