Home / 55,190.16-76,530.72-53,320.28

Finding the Fourth Proportional to 55,190.16, 76,530.72 and 53,320.28

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Solution

The fourth proportional to 55,190.16, 76,530.72 and 53,320.28 is: 73,937.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,190.16 : 76,530.72 = 53,320.28 : x
  2. Step 2: Convert to fraction form
    55,190.16/76,530.72 = 53,320.28/x
  3. Step 3: Cross multiply
    55,190.16x = 76,530.72 × 53,320.28
  4. Step 4: Simplify right side
    55,190.16x = 4,080,639,236.30
  5. Step 5: Solve for x
    x = 4,080,639,236.30/55,190.16
  6. Step 6: Final answer
    x = 73,937.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.