Home / 70,420.15-105,559.14-44,143.34

Finding the Fourth Proportional to 70,420.15, 105,559.14 and 44,143.34

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Solution

The fourth proportional to 70,420.15, 105,559.14 and 44,143.34 is: 66,170.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,420.15 : 105,559.14 = 44,143.34 : x
  2. Step 2: Convert to fraction form
    70,420.15/105,559.14 = 44,143.34/x
  3. Step 3: Cross multiply
    70,420.15x = 105,559.14 × 44,143.34
  4. Step 4: Simplify right side
    70,420.15x = 4,659,733,007.13
  5. Step 5: Solve for x
    x = 4,659,733,007.13/70,420.15
  6. Step 6: Final answer
    x = 66,170.45

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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.