Home / 65,880.10-90,913.76-35,664.75

Finding the Fourth Proportional to 65,880.10, 90,913.76 and 35,664.75

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Solution

The fourth proportional to 65,880.10, 90,913.76 and 35,664.75 is: 49,216.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,880.10 : 90,913.76 = 35,664.75 : x
  2. Step 2: Convert to fraction form
    65,880.10/90,913.76 = 35,664.75/x
  3. Step 3: Cross multiply
    65,880.10x = 90,913.76 × 35,664.75
  4. Step 4: Simplify right side
    65,880.10x = 3,242,416,521.96
  5. Step 5: Solve for x
    x = 3,242,416,521.96/65,880.10
  6. Step 6: Final answer
    x = 49,216.93

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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.