Home / 86,427.50-129,641.07-33,800.09

Finding the Fourth Proportional to 86,427.50, 129,641.07 and 33,800.09

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Solution

The fourth proportional to 86,427.50, 129,641.07 and 33,800.09 is: 50,700.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,427.50 : 129,641.07 = 33,800.09 : x
  2. Step 2: Convert to fraction form
    86,427.50/129,641.07 = 33,800.09/x
  3. Step 3: Cross multiply
    86,427.50x = 129,641.07 × 33,800.09
  4. Step 4: Simplify right side
    86,427.50x = 4,381,879,185.49
  5. Step 5: Solve for x
    x = 4,381,879,185.49/86,427.50
  6. Step 6: Final answer
    x = 50,700.06

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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.