Home / 76,475.44-105,532.68-42,486.31

Finding the Fourth Proportional to 76,475.44, 105,532.68 and 42,486.31

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Solution

The fourth proportional to 76,475.44, 105,532.68 and 42,486.31 is: 58,629.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,475.44 : 105,532.68 = 42,486.31 : x
  2. Step 2: Convert to fraction form
    76,475.44/105,532.68 = 42,486.31/x
  3. Step 3: Cross multiply
    76,475.44x = 105,532.68 × 42,486.31
  4. Step 4: Simplify right side
    76,475.44x = 4,483,694,157.61
  5. Step 5: Solve for x
    x = 4,483,694,157.61/76,475.44
  6. Step 6: Final answer
    x = 58,629.20

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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.