Home / 72,585.90-100,165.95-40,756.14

Finding the Fourth Proportional to 72,585.90, 100,165.95 and 40,756.14

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Solution

The fourth proportional to 72,585.90, 100,165.95 and 40,756.14 is: 56,242.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,585.90 : 100,165.95 = 40,756.14 : x
  2. Step 2: Convert to fraction form
    72,585.90/100,165.95 = 40,756.14/x
  3. Step 3: Cross multiply
    72,585.90x = 100,165.95 × 40,756.14
  4. Step 4: Simplify right side
    72,585.90x = 4,082,377,481.43
  5. Step 5: Solve for x
    x = 4,082,377,481.43/72,585.90
  6. Step 6: Final answer
    x = 56,242.02

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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.