Home / 53,387.20-79,994.40-33,630.40

Finding the Fourth Proportional to 53,387.20, 79,994.40 and 33,630.40

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Solution

The fourth proportional to 53,387.20, 79,994.40 and 33,630.40 is: 50,391.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,387.20 : 79,994.40 = 33,630.40 : x
  2. Step 2: Convert to fraction form
    53,387.20/79,994.40 = 33,630.40/x
  3. Step 3: Cross multiply
    53,387.20x = 79,994.40 × 33,630.40
  4. Step 4: Simplify right side
    53,387.20x = 2,690,243,669.76
  5. Step 5: Solve for x
    x = 2,690,243,669.76/53,387.20
  6. Step 6: Final answer
    x = 50,391.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.