Home / 65,913.92-90,960.32-37,620.08

Finding the Fourth Proportional to 65,913.92, 90,960.32 and 37,620.08

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Solution

The fourth proportional to 65,913.92, 90,960.32 and 37,620.08 is: 51,915.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,913.92 : 90,960.32 = 37,620.08 : x
  2. Step 2: Convert to fraction form
    65,913.92/90,960.32 = 37,620.08/x
  3. Step 3: Cross multiply
    65,913.92x = 90,960.32 × 37,620.08
  4. Step 4: Simplify right side
    65,913.92x = 3,421,934,515.23
  5. Step 5: Solve for x
    x = 3,421,934,515.23/65,913.92
  6. Step 6: Final answer
    x = 51,915.20

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1.5x scale

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.