Home / 77,085.98-106,365.05-43,083.60

Finding the Fourth Proportional to 77,085.98, 106,365.05 and 43,083.60

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Solution

The fourth proportional to 77,085.98, 106,365.05 and 43,083.60 is: 59,447.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,085.98 : 106,365.05 = 43,083.60 : x
  2. Step 2: Convert to fraction form
    77,085.98/106,365.05 = 43,083.60/x
  3. Step 3: Cross multiply
    77,085.98x = 106,365.05 × 43,083.60
  4. Step 4: Simplify right side
    77,085.98x = 4,582,588,815.46
  5. Step 5: Solve for x
    x = 4,582,588,815.46/77,085.98
  6. Step 6: Final answer
    x = 59,447.76

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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.