Home / 76,840.78-106,002.67-51,353.46

Finding the Fourth Proportional to 76,840.78, 106,002.67 and 51,353.46

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Solution

The fourth proportional to 76,840.78, 106,002.67 and 51,353.46 is: 70,842.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,840.78 : 106,002.67 = 51,353.46 : x
  2. Step 2: Convert to fraction form
    76,840.78/106,002.67 = 51,353.46/x
  3. Step 3: Cross multiply
    76,840.78x = 106,002.67 × 51,353.46
  4. Step 4: Simplify right side
    76,840.78x = 5,443,603,873.74
  5. Step 5: Solve for x
    x = 5,443,603,873.74/76,840.78
  6. Step 6: Final answer
    x = 70,842.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.