Home / 90,878.64-125,433.21-58,992.18

Finding the Fourth Proportional to 90,878.64, 125,433.21 and 58,992.18

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Solution

The fourth proportional to 90,878.64, 125,433.21 and 58,992.18 is: 81,422.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,878.64 : 125,433.21 = 58,992.18 : x
  2. Step 2: Convert to fraction form
    90,878.64/125,433.21 = 58,992.18/x
  3. Step 3: Cross multiply
    90,878.64x = 125,433.21 × 58,992.18
  4. Step 4: Simplify right side
    90,878.64x = 7,399,578,502.30
  5. Step 5: Solve for x
    x = 7,399,578,502.30/90,878.64
  6. Step 6: Final answer
    x = 81,422.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.