Home / 72,504.10-100,009.56-52,390.54

Finding the Fourth Proportional to 72,504.10, 100,009.56 and 52,390.54

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Solution

The fourth proportional to 72,504.10, 100,009.56 and 52,390.54 is: 72,265.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,504.10 : 100,009.56 = 52,390.54 : x
  2. Step 2: Convert to fraction form
    72,504.10/100,009.56 = 52,390.54/x
  3. Step 3: Cross multiply
    72,504.10x = 100,009.56 × 52,390.54
  4. Step 4: Simplify right side
    72,504.10x = 5,239,554,853.56
  5. Step 5: Solve for x
    x = 5,239,554,853.56/72,504.10
  6. Step 6: Final answer
    x = 72,265.64

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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.