Home / 76,824.66-105,980.35-51,337.29

Finding the Fourth Proportional to 76,824.66, 105,980.35 and 51,337.29

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Solution

The fourth proportional to 76,824.66, 105,980.35 and 51,337.29 is: 70,820.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,824.66 : 105,980.35 = 51,337.29 : x
  2. Step 2: Convert to fraction form
    76,824.66/105,980.35 = 51,337.29/x
  3. Step 3: Cross multiply
    76,824.66x = 105,980.35 × 51,337.29
  4. Step 4: Simplify right side
    76,824.66x = 5,440,743,962.25
  5. Step 5: Solve for x
    x = 5,440,743,962.25/76,824.66
  6. Step 6: Final answer
    x = 70,820.28

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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.