Home / 291,068.75-436,572.42-77,858.18

Finding the Fourth Proportional to 291,068.75, 436,572.42 and 77,858.18

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Solution

The fourth proportional to 291,068.75, 436,572.42 and 77,858.18 is: 116,779.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,068.75 : 436,572.42 = 77,858.18 : x
  2. Step 2: Convert to fraction form
    291,068.75/436,572.42 = 77,858.18/x
  3. Step 3: Cross multiply
    291,068.75x = 436,572.42 × 77,858.18
  4. Step 4: Simplify right side
    291,068.75x = 33,990,731,487.24
  5. Step 5: Solve for x
    x = 33,990,731,487.24/291,068.75
  6. Step 6: Final answer
    x = 116,779.05

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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.