Home / 56,265.20-77,645.88-30,771.68

Finding the Fourth Proportional to 56,265.20, 77,645.88 and 30,771.68

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Solution

The fourth proportional to 56,265.20, 77,645.88 and 30,771.68 is: 42,464.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,265.20 : 77,645.88 = 30,771.68 : x
  2. Step 2: Convert to fraction form
    56,265.20/77,645.88 = 30,771.68/x
  3. Step 3: Cross multiply
    56,265.20x = 77,645.88 × 30,771.68
  4. Step 4: Simplify right side
    56,265.20x = 2,389,294,172.68
  5. Step 5: Solve for x
    x = 2,389,294,172.68/56,265.20
  6. Step 6: Final answer
    x = 42,464.87

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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.