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Finding the Fourth Proportional to 82,610, 123,915.04 and 27,210.32

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Solution

The fourth proportional to 82,610, 123,915.04 and 27,210.32 is: 40,815.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,610 : 123,915.04 = 27,210.32 : x
  2. Step 2: Convert to fraction form
    82,610/123,915.04 = 27,210.32/x
  3. Step 3: Cross multiply
    82,610x = 123,915.04 × 27,210.32
  4. Step 4: Simplify right side
    82,610x = 3,371,767,891.21
  5. Step 5: Solve for x
    x = 3,371,767,891.21/82,610
  6. Step 6: Final answer
    x = 40,815.49

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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.