Home / 70,051.07-105,039.46-30,562.05

Finding the Fourth Proportional to 70,051.07, 105,039.46 and 30,562.05

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Solution

The fourth proportional to 70,051.07, 105,039.46 and 30,562.05 is: 45,826.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,051.07 : 105,039.46 = 30,562.05 : x
  2. Step 2: Convert to fraction form
    70,051.07/105,039.46 = 30,562.05/x
  3. Step 3: Cross multiply
    70,051.07x = 105,039.46 × 30,562.05
  4. Step 4: Simplify right side
    70,051.07x = 3,210,221,228.49
  5. Step 5: Solve for x
    x = 3,210,221,228.49/70,051.07
  6. Step 6: Final answer
    x = 45,826.87

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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.