Home / 76,849.68-106,052.34-42,858.20

Finding the Fourth Proportional to 76,849.68, 106,052.34 and 42,858.20

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Solution

The fourth proportional to 76,849.68, 106,052.34 and 42,858.20 is: 59,144.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,849.68 : 106,052.34 = 42,858.20 : x
  2. Step 2: Convert to fraction form
    76,849.68/106,052.34 = 42,858.20/x
  3. Step 3: Cross multiply
    76,849.68x = 106,052.34 × 42,858.20
  4. Step 4: Simplify right side
    76,849.68x = 4,545,212,824.04
  5. Step 5: Solve for x
    x = 4,545,212,824.04/76,849.68
  6. Step 6: Final answer
    x = 59,144.20

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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.