Home / 76,338.44-105,347.40-42,344.56

Finding the Fourth Proportional to 76,338.44, 105,347.40 and 42,344.56

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Solution

The fourth proportional to 76,338.44, 105,347.40 and 42,344.56 is: 58,435.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,338.44 : 105,347.40 = 42,344.56 : x
  2. Step 2: Convert to fraction form
    76,338.44/105,347.40 = 42,344.56/x
  3. Step 3: Cross multiply
    76,338.44x = 105,347.40 × 42,344.56
  4. Step 4: Simplify right side
    76,338.44x = 4,460,889,300.14
  5. Step 5: Solve for x
    x = 4,460,889,300.14/76,338.44
  6. Step 6: Final answer
    x = 58,435.69

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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.