Home / 86,888.55-119,844.36-79,741.53

Finding the Fourth Proportional to 86,888.55, 119,844.36 and 79,741.53

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Solution

The fourth proportional to 86,888.55, 119,844.36 and 79,741.53 is: 109,986.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,888.55 : 119,844.36 = 79,741.53 : x
  2. Step 2: Convert to fraction form
    86,888.55/119,844.36 = 79,741.53/x
  3. Step 3: Cross multiply
    86,888.55x = 119,844.36 × 79,741.53
  4. Step 4: Simplify right side
    86,888.55x = 9,556,572,628.27
  5. Step 5: Solve for x
    x = 9,556,572,628.27/86,888.55
  6. Step 6: Final answer
    x = 109,986.56

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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.