Home / 91,391.20-125,995.84-64,130.24

Finding the Fourth Proportional to 91,391.20, 125,995.84 and 64,130.24

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Solution

The fourth proportional to 91,391.20, 125,995.84 and 64,130.24 is: 88,412.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,391.20 : 125,995.84 = 64,130.24 : x
  2. Step 2: Convert to fraction form
    91,391.20/125,995.84 = 64,130.24/x
  3. Step 3: Cross multiply
    91,391.20x = 125,995.84 × 64,130.24
  4. Step 4: Simplify right side
    91,391.20x = 8,080,143,612.87
  5. Step 5: Solve for x
    x = 8,080,143,612.87/91,391.20
  6. Step 6: Final answer
    x = 88,412.71

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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.