Home / 72,403.10-108,604.65-54,907.10

Finding the Fourth Proportional to 72,403.10, 108,604.65 and 54,907.10

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Solution

The fourth proportional to 72,403.10, 108,604.65 and 54,907.10 is: 82,360.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,403.10 : 108,604.65 = 54,907.10 : x
  2. Step 2: Convert to fraction form
    72,403.10/108,604.65 = 54,907.10/x
  3. Step 3: Cross multiply
    72,403.10x = 108,604.65 × 54,907.10
  4. Step 4: Simplify right side
    72,403.10x = 5,963,166,378.02
  5. Step 5: Solve for x
    x = 5,963,166,378.02/72,403.10
  6. Step 6: Final answer
    x = 82,360.65

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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.