Home / 70,575.06-105,782.06-28,428.15

Finding the Fourth Proportional to 70,575.06, 105,782.06 and 28,428.15

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Solution

The fourth proportional to 70,575.06, 105,782.06 and 28,428.15 is: 42,609.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,575.06 : 105,782.06 = 28,428.15 : x
  2. Step 2: Convert to fraction form
    70,575.06/105,782.06 = 28,428.15/x
  3. Step 3: Cross multiply
    70,575.06x = 105,782.06 × 28,428.15
  4. Step 4: Simplify right side
    70,575.06x = 3,007,188,268.99
  5. Step 5: Solve for x
    x = 3,007,188,268.99/70,575.06
  6. Step 6: Final answer
    x = 42,609.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.