Home / 65,247.08-90,039.47-38,021.43

Finding the Fourth Proportional to 65,247.08, 90,039.47 and 38,021.43

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Solution

The fourth proportional to 65,247.08, 90,039.47 and 38,021.43 is: 52,468.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,247.08 : 90,039.47 = 38,021.43 : x
  2. Step 2: Convert to fraction form
    65,247.08/90,039.47 = 38,021.43/x
  3. Step 3: Cross multiply
    65,247.08x = 90,039.47 × 38,021.43
  4. Step 4: Simplify right side
    65,247.08x = 3,423,429,153.85
  5. Step 5: Solve for x
    x = 3,423,429,153.85/65,247.08
  6. Step 6: Final answer
    x = 52,468.70

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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.