Home / 85,840.76-118,458.98-47,600.36

Finding the Fourth Proportional to 85,840.76, 118,458.98 and 47,600.36

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Solution

The fourth proportional to 85,840.76, 118,458.98 and 47,600.36 is: 65,687.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,840.76 : 118,458.98 = 47,600.36 : x
  2. Step 2: Convert to fraction form
    85,840.76/118,458.98 = 47,600.36/x
  3. Step 3: Cross multiply
    85,840.76x = 118,458.98 × 47,600.36
  4. Step 4: Simplify right side
    85,840.76x = 5,638,690,093.23
  5. Step 5: Solve for x
    x = 5,638,690,093.23/85,840.76
  6. Step 6: Final answer
    x = 65,687.79

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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.