Home / 86,085.09-118,800.47-47,845.40

Finding the Fourth Proportional to 86,085.09, 118,800.47 and 47,845.40

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Solution

The fourth proportional to 86,085.09, 118,800.47 and 47,845.40 is: 66,028.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,085.09 : 118,800.47 = 47,845.40 : x
  2. Step 2: Convert to fraction form
    86,085.09/118,800.47 = 47,845.40/x
  3. Step 3: Cross multiply
    86,085.09x = 118,800.47 × 47,845.40
  4. Step 4: Simplify right side
    86,085.09x = 5,684,055,532.95
  5. Step 5: Solve for x
    x = 5,684,055,532.95/86,085.09
  6. Step 6: Final answer
    x = 66,028.34

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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.