Home / 76,140.59-105,075.30-41,688.34

Finding the Fourth Proportional to 76,140.59, 105,075.30 and 41,688.34

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Solution

The fourth proportional to 76,140.59, 105,075.30 and 41,688.34 is: 57,530.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,140.59 : 105,075.30 = 41,688.34 : x
  2. Step 2: Convert to fraction form
    76,140.59/105,075.30 = 41,688.34/x
  3. Step 3: Cross multiply
    76,140.59x = 105,075.30 × 41,688.34
  4. Step 4: Simplify right side
    76,140.59x = 4,380,414,832.00
  5. Step 5: Solve for x
    x = 4,380,414,832.00/76,140.59
  6. Step 6: Final answer
    x = 57,530.61

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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.