Home / 70,437.75-105,632.19-28,305.33

Finding the Fourth Proportional to 70,437.75, 105,632.19 and 28,305.33

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Solution

The fourth proportional to 70,437.75, 105,632.19 and 28,305.33 is: 42,448.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,437.75 : 105,632.19 = 28,305.33 : x
  2. Step 2: Convert to fraction form
    70,437.75/105,632.19 = 28,305.33/x
  3. Step 3: Cross multiply
    70,437.75x = 105,632.19 × 28,305.33
  4. Step 4: Simplify right side
    70,437.75x = 2,989,953,996.57
  5. Step 5: Solve for x
    x = 2,989,953,996.57/70,437.75
  6. Step 6: Final answer
    x = 42,448.18

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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.