Home / 84,346.56-126,256.32-56,289.60

Finding the Fourth Proportional to 84,346.56, 126,256.32 and 56,289.60

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Solution

The fourth proportional to 84,346.56, 126,256.32 and 56,289.60 is: 84,258.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,346.56 : 126,256.32 = 56,289.60 : x
  2. Step 2: Convert to fraction form
    84,346.56/126,256.32 = 56,289.60/x
  3. Step 3: Cross multiply
    84,346.56x = 126,256.32 × 56,289.60
  4. Step 4: Simplify right side
    84,346.56x = 7,106,917,750.27
  5. Step 5: Solve for x
    x = 7,106,917,750.27/84,346.56
  6. Step 6: Final answer
    x = 84,258.54

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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.