Home / 65,124.09-89,865.90-36,442.28

Finding the Fourth Proportional to 65,124.09, 89,865.90 and 36,442.28

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Solution

The fourth proportional to 65,124.09, 89,865.90 and 36,442.28 is: 50,287.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,124.09 : 89,865.90 = 36,442.28 : x
  2. Step 2: Convert to fraction form
    65,124.09/89,865.90 = 36,442.28/x
  3. Step 3: Cross multiply
    65,124.09x = 89,865.90 × 36,442.28
  4. Step 4: Simplify right side
    65,124.09x = 3,274,917,840.92
  5. Step 5: Solve for x
    x = 3,274,917,840.92/65,124.09
  6. Step 6: Final answer
    x = 50,287.35

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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.