Home / 86,860.40-130,333.80-34,271.60

Finding the Fourth Proportional to 86,860.40, 130,333.80 and 34,271.60

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Solution

The fourth proportional to 86,860.40, 130,333.80 and 34,271.60 is: 51,424.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,860.40 : 130,333.80 = 34,271.60 : x
  2. Step 2: Convert to fraction form
    86,860.40/130,333.80 = 34,271.60/x
  3. Step 3: Cross multiply
    86,860.40x = 130,333.80 × 34,271.60
  4. Step 4: Simplify right side
    86,860.40x = 4,466,747,860.08
  5. Step 5: Solve for x
    x = 4,466,747,860.08/86,860.40
  6. Step 6: Final answer
    x = 51,424.44

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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.