Home / 86,701.80-130,066.38-36,782.04

Finding the Fourth Proportional to 86,701.80, 130,066.38 and 36,782.04

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Solution

The fourth proportional to 86,701.80, 130,066.38 and 36,782.04 is: 55,178.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,701.80 : 130,066.38 = 36,782.04 : x
  2. Step 2: Convert to fraction form
    86,701.80/130,066.38 = 36,782.04/x
  3. Step 3: Cross multiply
    86,701.80x = 130,066.38 × 36,782.04
  4. Step 4: Simplify right side
    86,701.80x = 4,784,106,791.82
  5. Step 5: Solve for x
    x = 4,784,106,791.82/86,701.80
  6. Step 6: Final answer
    x = 55,178.86

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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.