Home / 86,865.18-130,222.38-34,261.76

Finding the Fourth Proportional to 86,865.18, 130,222.38 and 34,261.76

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Solution

The fourth proportional to 86,865.18, 130,222.38 and 34,261.76 is: 51,362.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,865.18 : 130,222.38 = 34,261.76 : x
  2. Step 2: Convert to fraction form
    86,865.18/130,222.38 = 34,261.76/x
  3. Step 3: Cross multiply
    86,865.18x = 130,222.38 × 34,261.76
  4. Step 4: Simplify right side
    86,865.18x = 4,461,647,930.19
  5. Step 5: Solve for x
    x = 4,461,647,930.19/86,865.18
  6. Step 6: Final answer
    x = 51,362.90

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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.