Home / 83,779.09-125,709.63-39,410.32

Finding the Fourth Proportional to 83,779.09, 125,709.63 and 39,410.32

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Solution

The fourth proportional to 83,779.09, 125,709.63 and 39,410.32 is: 59,134.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,779.09 : 125,709.63 = 39,410.32 : x
  2. Step 2: Convert to fraction form
    83,779.09/125,709.63 = 39,410.32/x
  3. Step 3: Cross multiply
    83,779.09x = 125,709.63 × 39,410.32
  4. Step 4: Simplify right side
    83,779.09x = 4,954,256,745.38
  5. Step 5: Solve for x
    x = 4,954,256,745.38/83,779.09
  6. Step 6: Final answer
    x = 59,134.76

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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.