Home / 84,040.32-115,938.90-60,158.28

Finding the Fourth Proportional to 84,040.32, 115,938.90 and 60,158.28

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Solution

The fourth proportional to 84,040.32, 115,938.90 and 60,158.28 is: 82,992.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,040.32 : 115,938.90 = 60,158.28 : x
  2. Step 2: Convert to fraction form
    84,040.32/115,938.90 = 60,158.28/x
  3. Step 3: Cross multiply
    84,040.32x = 115,938.90 × 60,158.28
  4. Step 4: Simplify right side
    84,040.32x = 6,974,684,809.09
  5. Step 5: Solve for x
    x = 6,974,684,809.09/84,040.32
  6. Step 6: Final answer
    x = 82,992.13

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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.