Home / 86,039.58-118,721.79-48,306.54

Finding the Fourth Proportional to 86,039.58, 118,721.79 and 48,306.54

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Solution

The fourth proportional to 86,039.58, 118,721.79 and 48,306.54 is: 66,655.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,039.58 : 118,721.79 = 48,306.54 : x
  2. Step 2: Convert to fraction form
    86,039.58/118,721.79 = 48,306.54/x
  3. Step 3: Cross multiply
    86,039.58x = 118,721.79 × 48,306.54
  4. Step 4: Simplify right side
    86,039.58x = 5,735,038,897.51
  5. Step 5: Solve for x
    x = 5,735,038,897.51/86,039.58
  6. Step 6: Final answer
    x = 66,655.82

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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.