Home / 86,145.32-118,891.23-48,419.57

Finding the Fourth Proportional to 86,145.32, 118,891.23 and 48,419.57

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Solution

The fourth proportional to 86,145.32, 118,891.23 and 48,419.57 is: 66,825.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,145.32 : 118,891.23 = 48,419.57 : x
  2. Step 2: Convert to fraction form
    86,145.32/118,891.23 = 48,419.57/x
  3. Step 3: Cross multiply
    86,145.32x = 118,891.23 × 48,419.57
  4. Step 4: Simplify right side
    86,145.32x = 5,756,662,349.03
  5. Step 5: Solve for x
    x = 5,756,662,349.03/86,145.32
  6. Step 6: Final answer
    x = 66,825.01

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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.