Home / 77,071.50-106,367.31-43,539.66

Finding the Fourth Proportional to 77,071.50, 106,367.31 and 43,539.66

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Solution

The fourth proportional to 77,071.50, 106,367.31 and 43,539.66 is: 60,089.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,071.50 : 106,367.31 = 43,539.66 : x
  2. Step 2: Convert to fraction form
    77,071.50/106,367.31 = 43,539.66/x
  3. Step 3: Cross multiply
    77,071.50x = 106,367.31 × 43,539.66
  4. Step 4: Simplify right side
    77,071.50x = 4,631,196,512.51
  5. Step 5: Solve for x
    x = 4,631,196,512.51/77,071.50
  6. Step 6: Final answer
    x = 60,089.61

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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.