Home / 65,632.12-90,579.12-40,155.46

Finding the Fourth Proportional to 65,632.12, 90,579.12 and 40,155.46

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Solution

The fourth proportional to 65,632.12, 90,579.12 and 40,155.46 is: 55,418.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,632.12 : 90,579.12 = 40,155.46 : x
  2. Step 2: Convert to fraction form
    65,632.12/90,579.12 = 40,155.46/x
  3. Step 3: Cross multiply
    65,632.12x = 90,579.12 × 40,155.46
  4. Step 4: Simplify right side
    65,632.12x = 3,637,246,230.00
  5. Step 5: Solve for x
    x = 3,637,246,230.00/65,632.12
  6. Step 6: Final answer
    x = 55,418.69

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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.