Home / 89,920.40-124,090.16-49,634.17

Finding the Fourth Proportional to 89,920.40, 124,090.16 and 49,634.17

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Solution

The fourth proportional to 89,920.40, 124,090.16 and 49,634.17 is: 68,495.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,920.40 : 124,090.16 = 49,634.17 : x
  2. Step 2: Convert to fraction form
    89,920.40/124,090.16 = 49,634.17/x
  3. Step 3: Cross multiply
    89,920.40x = 124,090.16 × 49,634.17
  4. Step 4: Simplify right side
    89,920.40x = 6,159,111,848.60
  5. Step 5: Solve for x
    x = 6,159,111,848.60/89,920.40
  6. Step 6: Final answer
    x = 68,495.16

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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.