Home / 86,157.96-118,897.32-47,917.84

Finding the Fourth Proportional to 86,157.96, 118,897.32 and 47,917.84

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Solution

The fourth proportional to 86,157.96, 118,897.32 and 47,917.84 is: 66,126.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,157.96 : 118,897.32 = 47,917.84 : x
  2. Step 2: Convert to fraction form
    86,157.96/118,897.32 = 47,917.84/x
  3. Step 3: Cross multiply
    86,157.96x = 118,897.32 × 47,917.84
  4. Step 4: Simplify right side
    86,157.96x = 5,697,302,756.19
  5. Step 5: Solve for x
    x = 5,697,302,756.19/86,157.96
  6. Step 6: Final answer
    x = 66,126.25

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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.