Home / 52,428.20-72,351.78-28,555.34

Finding the Fourth Proportional to 52,428.20, 72,351.78 and 28,555.34

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Solution

The fourth proportional to 52,428.20, 72,351.78 and 28,555.34 is: 39,406.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,428.20 : 72,351.78 = 28,555.34 : x
  2. Step 2: Convert to fraction form
    52,428.20/72,351.78 = 28,555.34/x
  3. Step 3: Cross multiply
    52,428.20x = 72,351.78 × 28,555.34
  4. Step 4: Simplify right side
    52,428.20x = 2,066,029,677.51
  5. Step 5: Solve for x
    x = 2,066,029,677.51/52,428.20
  6. Step 6: Final answer
    x = 39,406.84

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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.