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Finding the Fourth Proportional to 65,886, 90,921.58 and 35,671.04

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Solution

The fourth proportional to 65,886, 90,921.58 and 35,671.04 is: 49,225.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,886 : 90,921.58 = 35,671.04 : x
  2. Step 2: Convert to fraction form
    65,886/90,921.58 = 35,671.04/x
  3. Step 3: Cross multiply
    65,886x = 90,921.58 × 35,671.04
  4. Step 4: Simplify right side
    65,886x = 3,243,267,317.04
  5. Step 5: Solve for x
    x = 3,243,267,317.04/65,886
  6. Step 6: Final answer
    x = 49,225.44

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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.