Home / 84,679.18-126,769.56-56,529.40

Finding the Fourth Proportional to 84,679.18, 126,769.56 and 56,529.40

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Solution

The fourth proportional to 84,679.18, 126,769.56 and 56,529.40 is: 84,627.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,679.18 : 126,769.56 = 56,529.40 : x
  2. Step 2: Convert to fraction form
    84,679.18/126,769.56 = 56,529.40/x
  3. Step 3: Cross multiply
    84,679.18x = 126,769.56 × 56,529.40
  4. Step 4: Simplify right side
    84,679.18x = 7,166,207,165.06
  5. Step 5: Solve for x
    x = 7,166,207,165.06/84,679.18
  6. Step 6: Final answer
    x = 84,627.73

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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.