Home / 82,293.12-123,435.60-28,987.76

Finding the Fourth Proportional to 82,293.12, 123,435.60 and 28,987.76

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Solution

The fourth proportional to 82,293.12, 123,435.60 and 28,987.76 is: 43,480.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,293.12 : 123,435.60 = 28,987.76 : x
  2. Step 2: Convert to fraction form
    82,293.12/123,435.60 = 28,987.76/x
  3. Step 3: Cross multiply
    82,293.12x = 123,435.60 × 28,987.76
  4. Step 4: Simplify right side
    82,293.12x = 3,578,121,548.26
  5. Step 5: Solve for x
    x = 3,578,121,548.26/82,293.12
  6. Step 6: Final answer
    x = 43,480.20

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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.