Home / 65,931.24-90,911.83-47,745.99

Finding the Fourth Proportional to 65,931.24, 90,911.83 and 47,745.99

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Solution

The fourth proportional to 65,931.24, 90,911.83 and 47,745.99 is: 65,836.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,931.24 : 90,911.83 = 47,745.99 : x
  2. Step 2: Convert to fraction form
    65,931.24/90,911.83 = 47,745.99/x
  3. Step 3: Cross multiply
    65,931.24x = 90,911.83 × 47,745.99
  4. Step 4: Simplify right side
    65,931.24x = 4,340,675,746.90
  5. Step 5: Solve for x
    x = 4,340,675,746.90/65,931.24
  6. Step 6: Final answer
    x = 65,836.40

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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.