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Finding the Fourth Proportional to 75,779.79, 113,647.73 and 25,858.77

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Solution

The fourth proportional to 75,779.79, 113,647.73 and 25,858.77 is: 38,780.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,779.79 : 113,647.73 = 25,858.77 : x
  2. Step 2: Convert to fraction form
    75,779.79/113,647.73 = 25,858.77/x
  3. Step 3: Cross multiply
    75,779.79x = 113,647.73 × 25,858.77
  4. Step 4: Simplify right side
    75,779.79x = 2,938,790,381.80
  5. Step 5: Solve for x
    x = 2,938,790,381.80/75,779.79
  6. Step 6: Final answer
    x = 38,780.66

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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.