Home / 86,015.16-118,696.88-47,777.18

Finding the Fourth Proportional to 86,015.16, 118,696.88 and 47,777.18

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Solution

The fourth proportional to 86,015.16, 118,696.88 and 47,777.18 is: 65,930.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,015.16 : 118,696.88 = 47,777.18 : x
  2. Step 2: Convert to fraction form
    86,015.16/118,696.88 = 47,777.18/x
  3. Step 3: Cross multiply
    86,015.16x = 118,696.88 × 47,777.18
  4. Step 4: Simplify right side
    86,015.16x = 5,671,001,368.83
  5. Step 5: Solve for x
    x = 5,671,001,368.83/86,015.16
  6. Step 6: Final answer
    x = 65,930.25

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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.