Home / 86,397.06-129,576.16-30,993.06

Finding the Fourth Proportional to 86,397.06, 129,576.16 and 30,993.06

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Solution

The fourth proportional to 86,397.06, 129,576.16 and 30,993.06 is: 46,482.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,397.06 : 129,576.16 = 30,993.06 : x
  2. Step 2: Convert to fraction form
    86,397.06/129,576.16 = 30,993.06/x
  3. Step 3: Cross multiply
    86,397.06x = 129,576.16 × 30,993.06
  4. Step 4: Simplify right side
    86,397.06x = 4,015,962,051.77
  5. Step 5: Solve for x
    x = 4,015,962,051.77/86,397.06
  6. Step 6: Final answer
    x = 46,482.62

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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.