Home / 85,975.63-129,013.56-36,051.89

Finding the Fourth Proportional to 85,975.63, 129,013.56 and 36,051.89

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Solution

The fourth proportional to 85,975.63, 129,013.56 and 36,051.89 is: 54,098.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,975.63 : 129,013.56 = 36,051.89 : x
  2. Step 2: Convert to fraction form
    85,975.63/129,013.56 = 36,051.89/x
  3. Step 3: Cross multiply
    85,975.63x = 129,013.56 × 36,051.89
  4. Step 4: Simplify right side
    85,975.63x = 4,651,182,028.56
  5. Step 5: Solve for x
    x = 4,651,182,028.56/85,975.63
  6. Step 6: Final answer
    x = 54,098.84

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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.