Home / 127,779.36-191,697.24-39,039.80

Finding the Fourth Proportional to 127,779.36, 191,697.24 and 39,039.80

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Solution

The fourth proportional to 127,779.36, 191,697.24 and 39,039.80 is: 58,568.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,779.36 : 191,697.24 = 39,039.80 : x
  2. Step 2: Convert to fraction form
    127,779.36/191,697.24 = 39,039.80/x
  3. Step 3: Cross multiply
    127,779.36x = 191,697.24 × 39,039.80
  4. Step 4: Simplify right side
    127,779.36x = 7,483,820,951.67
  5. Step 5: Solve for x
    x = 7,483,820,951.67/127,779.36
  6. Step 6: Final answer
    x = 58,568.31

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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.