Home / 70,395.23-105,584.64-28,273.61

Finding the Fourth Proportional to 70,395.23, 105,584.64 and 28,273.61

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Solution

The fourth proportional to 70,395.23, 105,584.64 and 28,273.61 is: 42,407.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,395.23 : 105,584.64 = 28,273.61 : x
  2. Step 2: Convert to fraction form
    70,395.23/105,584.64 = 28,273.61/x
  3. Step 3: Cross multiply
    70,395.23x = 105,584.64 × 28,273.61
  4. Step 4: Simplify right side
    70,395.23x = 2,985,258,576.89
  5. Step 5: Solve for x
    x = 2,985,258,576.89/70,395.23
  6. Step 6: Final answer
    x = 42,407.12

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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.