Home / 86,800.74-130,211.52-30,629.25

Finding the Fourth Proportional to 86,800.74, 130,211.52 and 30,629.25

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Solution

The fourth proportional to 86,800.74, 130,211.52 and 30,629.25 is: 45,947.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,800.74 : 130,211.52 = 30,629.25 : x
  2. Step 2: Convert to fraction form
    86,800.74/130,211.52 = 30,629.25/x
  3. Step 3: Cross multiply
    86,800.74x = 130,211.52 × 30,629.25
  4. Step 4: Simplify right side
    86,800.74x = 3,988,281,084.10
  5. Step 5: Solve for x
    x = 3,988,281,084.10/86,800.74
  6. Step 6: Final answer
    x = 45,947.55

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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.