Home / 76,141.10-105,075.99-41,688.84

Finding the Fourth Proportional to 76,141.10, 105,075.99 and 41,688.84

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Solution

The fourth proportional to 76,141.10, 105,075.99 and 41,688.84 is: 57,531.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,141.10 : 105,075.99 = 41,688.84 : x
  2. Step 2: Convert to fraction form
    76,141.10/105,075.99 = 41,688.84/x
  3. Step 3: Cross multiply
    76,141.10x = 105,075.99 × 41,688.84
  4. Step 4: Simplify right side
    76,141.10x = 4,380,496,134.95
  5. Step 5: Solve for x
    x = 4,380,496,134.95/76,141.10
  6. Step 6: Final answer
    x = 57,531.30

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1.5x scale

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.