Home / 52,830.20-72,905.34-28,958.36

Finding the Fourth Proportional to 52,830.20, 72,905.34 and 28,958.36

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Solution

The fourth proportional to 52,830.20, 72,905.34 and 28,958.36 is: 39,962.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,830.20 : 72,905.34 = 28,958.36 : x
  2. Step 2: Convert to fraction form
    52,830.20/72,905.34 = 28,958.36/x
  3. Step 3: Cross multiply
    52,830.20x = 72,905.34 × 28,958.36
  4. Step 4: Simplify right side
    52,830.20x = 2,111,219,081.64
  5. Step 5: Solve for x
    x = 2,111,219,081.64/52,830.20
  6. Step 6: Final answer
    x = 39,962.35

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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.