Home / 72,585.12-100,159.74-40,757.52

Finding the Fourth Proportional to 72,585.12, 100,159.74 and 40,757.52

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Solution

The fourth proportional to 72,585.12, 100,159.74 and 40,757.52 is: 56,241.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,585.12 : 100,159.74 = 40,757.52 : x
  2. Step 2: Convert to fraction form
    72,585.12/100,159.74 = 40,757.52/x
  3. Step 3: Cross multiply
    72,585.12x = 100,159.74 × 40,757.52
  4. Step 4: Simplify right side
    72,585.12x = 4,082,262,606.24
  5. Step 5: Solve for x
    x = 4,082,262,606.24/72,585.12
  6. Step 6: Final answer
    x = 56,241.04

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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.