Home / 56,306.48-77,701.74-30,812.75

Finding the Fourth Proportional to 56,306.48, 77,701.74 and 30,812.75

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Solution

The fourth proportional to 56,306.48, 77,701.74 and 30,812.75 is: 42,520.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,306.48 : 77,701.74 = 30,812.75 : x
  2. Step 2: Convert to fraction form
    56,306.48/77,701.74 = 30,812.75/x
  3. Step 3: Cross multiply
    56,306.48x = 77,701.74 × 30,812.75
  4. Step 4: Simplify right side
    56,306.48x = 2,394,203,900.68
  5. Step 5: Solve for x
    x = 2,394,203,900.68/56,306.48
  6. Step 6: Final answer
    x = 42,520.93

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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.