Home / 94,977.21-131,075.67-54,142.31

Finding the Fourth Proportional to 94,977.21, 131,075.67 and 54,142.31

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Solution

The fourth proportional to 94,977.21, 131,075.67 and 54,142.31 is: 74,720.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,977.21 : 131,075.67 = 54,142.31 : x
  2. Step 2: Convert to fraction form
    94,977.21/131,075.67 = 54,142.31/x
  3. Step 3: Cross multiply
    94,977.21x = 131,075.67 × 54,142.31
  4. Step 4: Simplify right side
    94,977.21x = 7,096,739,411.11
  5. Step 5: Solve for x
    x = 7,096,739,411.11/94,977.21
  6. Step 6: Final answer
    x = 74,720.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.