Home / 82,275.21-123,436.05-23,111.40

Finding the Fourth Proportional to 82,275.21, 123,436.05 and 23,111.40

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Solution

The fourth proportional to 82,275.21, 123,436.05 and 23,111.40 is: 34,673.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,275.21 : 123,436.05 = 23,111.40 : x
  2. Step 2: Convert to fraction form
    82,275.21/123,436.05 = 23,111.40/x
  3. Step 3: Cross multiply
    82,275.21x = 123,436.05 × 23,111.40
  4. Step 4: Simplify right side
    82,275.21x = 2,852,779,925.97
  5. Step 5: Solve for x
    x = 2,852,779,925.97/82,275.21
  6. Step 6: Final answer
    x = 34,673.63

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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.