Home / 86,123.44-118,860.19-47,886.80

Finding the Fourth Proportional to 86,123.44, 118,860.19 and 47,886.80

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Solution

The fourth proportional to 86,123.44, 118,860.19 and 47,886.80 is: 66,089.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,123.44 : 118,860.19 = 47,886.80 : x
  2. Step 2: Convert to fraction form
    86,123.44/118,860.19 = 47,886.80/x
  3. Step 3: Cross multiply
    86,123.44x = 118,860.19 × 47,886.80
  4. Step 4: Simplify right side
    86,123.44x = 5,691,834,146.49
  5. Step 5: Solve for x
    x = 5,691,834,146.49/86,123.44
  6. Step 6: Final answer
    x = 66,089.26

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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.