Home / 86,050.25-129,088.47-43,907.30

Finding the Fourth Proportional to 86,050.25, 129,088.47 and 43,907.30

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Solution

The fourth proportional to 86,050.25, 129,088.47 and 43,907.30 is: 65,867.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,050.25 : 129,088.47 = 43,907.30 : x
  2. Step 2: Convert to fraction form
    86,050.25/129,088.47 = 43,907.30/x
  3. Step 3: Cross multiply
    86,050.25x = 129,088.47 × 43,907.30
  4. Step 4: Simplify right side
    86,050.25x = 5,667,925,533.39
  5. Step 5: Solve for x
    x = 5,667,925,533.39/86,050.25
  6. Step 6: Final answer
    x = 65,867.63

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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.