Home / 52,486.21-72,431.73-28,613.29

Finding the Fourth Proportional to 52,486.21, 72,431.73 and 28,613.29

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Solution

The fourth proportional to 52,486.21, 72,431.73 and 28,613.29 is: 39,486.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,486.21 : 72,431.73 = 28,613.29 : x
  2. Step 2: Convert to fraction form
    52,486.21/72,431.73 = 28,613.29/x
  3. Step 3: Cross multiply
    52,486.21x = 72,431.73 × 28,613.29
  4. Step 4: Simplify right side
    52,486.21x = 2,072,510,095.69
  5. Step 5: Solve for x
    x = 2,072,510,095.69/52,486.21
  6. Step 6: Final answer
    x = 39,486.75

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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.