Home / 86,853.36-130,236.20-30,685.04

Finding the Fourth Proportional to 86,853.36, 130,236.20 and 30,685.04

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Solution

The fourth proportional to 86,853.36, 130,236.20 and 30,685.04 is: 46,012.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,853.36 : 130,236.20 = 30,685.04 : x
  2. Step 2: Convert to fraction form
    86,853.36/130,236.20 = 30,685.04/x
  3. Step 3: Cross multiply
    86,853.36x = 130,236.20 × 30,685.04
  4. Step 4: Simplify right side
    86,853.36x = 3,996,303,006.45
  5. Step 5: Solve for x
    x = 3,996,303,006.45/86,853.36
  6. Step 6: Final answer
    x = 46,012.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.