Home / 86,676.12-129,907.80-49,267.50

Finding the Fourth Proportional to 86,676.12, 129,907.80 and 49,267.50

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Solution

The fourth proportional to 86,676.12, 129,907.80 and 49,267.50 is: 73,840.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,676.12 : 129,907.80 = 49,267.50 : x
  2. Step 2: Convert to fraction form
    86,676.12/129,907.80 = 49,267.50/x
  3. Step 3: Cross multiply
    86,676.12x = 129,907.80 × 49,267.50
  4. Step 4: Simplify right side
    86,676.12x = 6,400,232,536.50
  5. Step 5: Solve for x
    x = 6,400,232,536.50/86,676.12
  6. Step 6: Final answer
    x = 73,840.78

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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.