Home / 76,638.93-114,969.21-26,711.73

Finding the Fourth Proportional to 76,638.93, 114,969.21 and 26,711.73

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Solution

The fourth proportional to 76,638.93, 114,969.21 and 26,711.73 is: 40,071.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,638.93 : 114,969.21 = 26,711.73 : x
  2. Step 2: Convert to fraction form
    76,638.93/114,969.21 = 26,711.73/x
  3. Step 3: Cross multiply
    76,638.93x = 114,969.21 × 26,711.73
  4. Step 4: Simplify right side
    76,638.93x = 3,071,026,495.83
  5. Step 5: Solve for x
    x = 3,071,026,495.83/76,638.93
  6. Step 6: Final answer
    x = 40,071.36

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1.5x scale

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.