Home / 86,376.96-129,470.40-33,776.64

Finding the Fourth Proportional to 86,376.96, 129,470.40 and 33,776.64

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Solution

The fourth proportional to 86,376.96, 129,470.40 and 33,776.64 is: 50,627.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,376.96 : 129,470.40 = 33,776.64 : x
  2. Step 2: Convert to fraction form
    86,376.96/129,470.40 = 33,776.64/x
  3. Step 3: Cross multiply
    86,376.96x = 129,470.40 × 33,776.64
  4. Step 4: Simplify right side
    86,376.96x = 4,373,075,091.46
  5. Step 5: Solve for x
    x = 4,373,075,091.46/86,376.96
  6. Step 6: Final answer
    x = 50,627.80

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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.