Home / 86,994.89-130,399.05-56,997.80

Finding the Fourth Proportional to 86,994.89, 130,399.05 and 56,997.80

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Solution

The fourth proportional to 86,994.89, 130,399.05 and 56,997.80 is: 85,435.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,994.89 : 130,399.05 = 56,997.80 : x
  2. Step 2: Convert to fraction form
    86,994.89/130,399.05 = 56,997.80/x
  3. Step 3: Cross multiply
    86,994.89x = 130,399.05 × 56,997.80
  4. Step 4: Simplify right side
    86,994.89x = 7,432,459,107.02
  5. Step 5: Solve for x
    x = 7,432,459,107.02/86,994.89
  6. Step 6: Final answer
    x = 85,435.58

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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.