Home / 55,421.50-76,482.08-30,271

Finding the Fourth Proportional to 55,421.50, 76,482.08 and 30,271

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Solution

The fourth proportional to 55,421.50, 76,482.08 and 30,271 is: 41,774.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,421.50 : 76,482.08 = 30,271 : x
  2. Step 2: Convert to fraction form
    55,421.50/76,482.08 = 30,271/x
  3. Step 3: Cross multiply
    55,421.50x = 76,482.08 × 30,271
  4. Step 4: Simplify right side
    55,421.50x = 2,315,189,043.68
  5. Step 5: Solve for x
    x = 2,315,189,043.68/55,421.50
  6. Step 6: Final answer
    x = 41,774.20

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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.