Home / 65,415.07-90,272.64-36,730.54

Finding the Fourth Proportional to 65,415.07, 90,272.64 and 36,730.54

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Solution

The fourth proportional to 65,415.07, 90,272.64 and 36,730.54 is: 50,688.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,415.07 : 90,272.64 = 36,730.54 : x
  2. Step 2: Convert to fraction form
    65,415.07/90,272.64 = 36,730.54/x
  3. Step 3: Cross multiply
    65,415.07x = 90,272.64 × 36,730.54
  4. Step 4: Simplify right side
    65,415.07x = 3,315,762,814.43
  5. Step 5: Solve for x
    x = 3,315,762,814.43/65,415.07
  6. Step 6: Final answer
    x = 50,688.06

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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.