Home / 52,412.25-72,330.21-28,540.26

Finding the Fourth Proportional to 52,412.25, 72,330.21 and 28,540.26

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Solution

The fourth proportional to 52,412.25, 72,330.21 and 28,540.26 is: 39,386.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,412.25 : 72,330.21 = 28,540.26 : x
  2. Step 2: Convert to fraction form
    52,412.25/72,330.21 = 28,540.26/x
  3. Step 3: Cross multiply
    52,412.25x = 72,330.21 × 28,540.26
  4. Step 4: Simplify right side
    52,412.25x = 2,064,322,999.25
  5. Step 5: Solve for x
    x = 2,064,322,999.25/52,412.25
  6. Step 6: Final answer
    x = 39,386.27

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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.