Home / 85,556.64-118,066-47,315.18

Finding the Fourth Proportional to 85,556.64, 118,066 and 47,315.18

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Solution

The fourth proportional to 85,556.64, 118,066 and 47,315.18 is: 65,293.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,556.64 : 118,066 = 47,315.18 : x
  2. Step 2: Convert to fraction form
    85,556.64/118,066 = 47,315.18/x
  3. Step 3: Cross multiply
    85,556.64x = 118,066 × 47,315.18
  4. Step 4: Simplify right side
    85,556.64x = 5,586,314,041.88
  5. Step 5: Solve for x
    x = 5,586,314,041.88/85,556.64
  6. Step 6: Final answer
    x = 65,293.75

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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.