Home / 86,784.21-130,195.53-36,907.11

Finding the Fourth Proportional to 86,784.21, 130,195.53 and 36,907.11

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Solution

The fourth proportional to 86,784.21, 130,195.53 and 36,907.11 is: 55,368.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,784.21 : 130,195.53 = 36,907.11 : x
  2. Step 2: Convert to fraction form
    86,784.21/130,195.53 = 36,907.11/x
  3. Step 3: Cross multiply
    86,784.21x = 130,195.53 × 36,907.11
  4. Step 4: Simplify right side
    86,784.21x = 4,805,140,747.22
  5. Step 5: Solve for x
    x = 4,805,140,747.22/86,784.21
  6. Step 6: Final answer
    x = 55,368.84

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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.