Home / 52,486.88-72,431.69-28,613.48

Finding the Fourth Proportional to 52,486.88, 72,431.69 and 28,613.48

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Solution

The fourth proportional to 52,486.88, 72,431.69 and 28,613.48 is: 39,486.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,486.88 : 72,431.69 = 28,613.48 : x
  2. Step 2: Convert to fraction form
    52,486.88/72,431.69 = 28,613.48/x
  3. Step 3: Cross multiply
    52,486.88x = 72,431.69 × 28,613.48
  4. Step 4: Simplify right side
    52,486.88x = 2,072,522,207.96
  5. Step 5: Solve for x
    x = 2,072,522,207.96/52,486.88
  6. Step 6: Final answer
    x = 39,486.49

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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.