Home / 82,416.90-123,625.35-54,350.40

Finding the Fourth Proportional to 82,416.90, 123,625.35 and 54,350.40

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Solution

The fourth proportional to 82,416.90, 123,625.35 and 54,350.40 is: 81,525.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,416.90 : 123,625.35 = 54,350.40 : x
  2. Step 2: Convert to fraction form
    82,416.90/123,625.35 = 54,350.40/x
  3. Step 3: Cross multiply
    82,416.90x = 123,625.35 × 54,350.40
  4. Step 4: Simplify right side
    82,416.90x = 6,719,087,222.64
  5. Step 5: Solve for x
    x = 6,719,087,222.64/82,416.90
  6. Step 6: Final answer
    x = 81,525.60

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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.