Home / 76,425.85-114,641.36-20,271.63

Finding the Fourth Proportional to 76,425.85, 114,641.36 and 20,271.63

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Solution

The fourth proportional to 76,425.85, 114,641.36 and 20,271.63 is: 30,408.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,425.85 : 114,641.36 = 20,271.63 : x
  2. Step 2: Convert to fraction form
    76,425.85/114,641.36 = 20,271.63/x
  3. Step 3: Cross multiply
    76,425.85x = 114,641.36 × 20,271.63
  4. Step 4: Simplify right side
    76,425.85x = 2,323,967,239.06
  5. Step 5: Solve for x
    x = 2,323,967,239.06/76,425.85
  6. Step 6: Final answer
    x = 30,408.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.