Home / 55,306.12-76,321.48-30,155.64

Finding the Fourth Proportional to 55,306.12, 76,321.48 and 30,155.64

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Solution

The fourth proportional to 55,306.12, 76,321.48 and 30,155.64 is: 41,614.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,306.12 : 76,321.48 = 30,155.64 : x
  2. Step 2: Convert to fraction form
    55,306.12/76,321.48 = 30,155.64/x
  3. Step 3: Cross multiply
    55,306.12x = 76,321.48 × 30,155.64
  4. Step 4: Simplify right side
    55,306.12x = 2,301,523,075.15
  5. Step 5: Solve for x
    x = 2,301,523,075.15/55,306.12
  6. Step 6: Final answer
    x = 41,614.26

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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.