Home / 52,415.40-72,333.70-28,542.20

Finding the Fourth Proportional to 52,415.40, 72,333.70 and 28,542.20

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Solution

The fourth proportional to 52,415.40, 72,333.70 and 28,542.20 is: 39,388.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,415.40 : 72,333.70 = 28,542.20 : x
  2. Step 2: Convert to fraction form
    52,415.40/72,333.70 = 28,542.20/x
  3. Step 3: Cross multiply
    52,415.40x = 72,333.70 × 28,542.20
  4. Step 4: Simplify right side
    52,415.40x = 2,064,562,932.14
  5. Step 5: Solve for x
    x = 2,064,562,932.14/52,415.40
  6. Step 6: Final answer
    x = 39,388.48

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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.