Home / 82,420.39-123,623.75-26,258.23

Finding the Fourth Proportional to 82,420.39, 123,623.75 and 26,258.23

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Solution

The fourth proportional to 82,420.39, 123,623.75 and 26,258.23 is: 39,385.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,420.39 : 123,623.75 = 26,258.23 : x
  2. Step 2: Convert to fraction form
    82,420.39/123,623.75 = 26,258.23/x
  3. Step 3: Cross multiply
    82,420.39x = 123,623.75 × 26,258.23
  4. Step 4: Simplify right side
    82,420.39x = 3,246,140,860.96
  5. Step 5: Solve for x
    x = 3,246,140,860.96/82,420.39
  6. Step 6: Final answer
    x = 39,385.17

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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.