Home / 86,777.10-130,017.05-47,361.87

Finding the Fourth Proportional to 86,777.10, 130,017.05 and 47,361.87

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Solution

The fourth proportional to 86,777.10, 130,017.05 and 47,361.87 is: 70,961.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,777.10 : 130,017.05 = 47,361.87 : x
  2. Step 2: Convert to fraction form
    86,777.10/130,017.05 = 47,361.87/x
  3. Step 3: Cross multiply
    86,777.10x = 130,017.05 × 47,361.87
  4. Step 4: Simplify right side
    86,777.10x = 6,157,850,619.88
  5. Step 5: Solve for x
    x = 6,157,850,619.88/86,777.10
  6. Step 6: Final answer
    x = 70,961.70

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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.