Home / 72,568.38-100,147.68-40,303.13

Finding the Fourth Proportional to 72,568.38, 100,147.68 and 40,303.13

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Solution

The fourth proportional to 72,568.38, 100,147.68 and 40,303.13 is: 55,620.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,568.38 : 100,147.68 = 40,303.13 : x
  2. Step 2: Convert to fraction form
    72,568.38/100,147.68 = 40,303.13/x
  3. Step 3: Cross multiply
    72,568.38x = 100,147.68 × 40,303.13
  4. Step 4: Simplify right side
    72,568.38x = 4,036,264,734.28
  5. Step 5: Solve for x
    x = 4,036,264,734.28/72,568.38
  6. Step 6: Final answer
    x = 55,620.16

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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.