Home / 86,803.46-130,215.60-30,631.97

Finding the Fourth Proportional to 86,803.46, 130,215.60 and 30,631.97

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Solution

The fourth proportional to 86,803.46, 130,215.60 and 30,631.97 is: 45,951.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,803.46 : 130,215.60 = 30,631.97 : x
  2. Step 2: Convert to fraction form
    86,803.46/130,215.60 = 30,631.97/x
  3. Step 3: Cross multiply
    86,803.46x = 130,215.60 × 30,631.97
  4. Step 4: Simplify right side
    86,803.46x = 3,988,759,701.65
  5. Step 5: Solve for x
    x = 3,988,759,701.65/86,803.46
  6. Step 6: Final answer
    x = 45,951.62

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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.