Home / 291,741.10-437,572.76-81,361.42

Finding the Fourth Proportional to 291,741.10, 437,572.76 and 81,361.42

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Solution

The fourth proportional to 291,741.10, 437,572.76 and 81,361.42 is: 122,031.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,741.10 : 437,572.76 = 81,361.42 : x
  2. Step 2: Convert to fraction form
    291,741.10/437,572.76 = 81,361.42/x
  3. Step 3: Cross multiply
    291,741.10x = 437,572.76 × 81,361.42
  4. Step 4: Simplify right side
    291,741.10x = 35,601,541,106.92
  5. Step 5: Solve for x
    x = 35,601,541,106.92/291,741.10
  6. Step 6: Final answer
    x = 122,031.28

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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.