Home / 70,856.23-106,256.98-28,725.79

Finding the Fourth Proportional to 70,856.23, 106,256.98 and 28,725.79

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Solution

The fourth proportional to 70,856.23, 106,256.98 and 28,725.79 is: 43,077.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,856.23 : 106,256.98 = 28,725.79 : x
  2. Step 2: Convert to fraction form
    70,856.23/106,256.98 = 28,725.79/x
  3. Step 3: Cross multiply
    70,856.23x = 106,256.98 × 28,725.79
  4. Step 4: Simplify right side
    70,856.23x = 3,052,315,693.51
  5. Step 5: Solve for x
    x = 3,052,315,693.51/70,856.23
  6. Step 6: Final answer
    x = 43,077.59

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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.