Home / 84,848-127,272.28-28,688.56

Finding the Fourth Proportional to 84,848, 127,272.28 and 28,688.56

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Solution

The fourth proportional to 84,848, 127,272.28 and 28,688.56 is: 43,032.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,848 : 127,272.28 = 28,688.56 : x
  2. Step 2: Convert to fraction form
    84,848/127,272.28 = 28,688.56/x
  3. Step 3: Cross multiply
    84,848x = 127,272.28 × 28,688.56
  4. Step 4: Simplify right side
    84,848x = 3,651,258,441.12
  5. Step 5: Solve for x
    x = 3,651,258,441.12/84,848
  6. Step 6: Final answer
    x = 43,032.93

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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.