Home / 86,014.24-118,749-57,326.32

Finding the Fourth Proportional to 86,014.24, 118,749 and 57,326.32

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Solution

The fourth proportional to 86,014.24, 118,749 and 57,326.32 is: 79,143.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,014.24 : 118,749 = 57,326.32 : x
  2. Step 2: Convert to fraction form
    86,014.24/118,749 = 57,326.32/x
  3. Step 3: Cross multiply
    86,014.24x = 118,749 × 57,326.32
  4. Step 4: Simplify right side
    86,014.24x = 6,807,443,173.68
  5. Step 5: Solve for x
    x = 6,807,443,173.68/86,014.24
  6. Step 6: Final answer
    x = 79,143.21

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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.