Home / 56,355.84-77,771.16-30,514.68

Finding the Fourth Proportional to 56,355.84, 77,771.16 and 30,514.68

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Solution

The fourth proportional to 56,355.84, 77,771.16 and 30,514.68 is: 42,110.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,355.84 : 77,771.16 = 30,514.68 : x
  2. Step 2: Convert to fraction form
    56,355.84/77,771.16 = 30,514.68/x
  3. Step 3: Cross multiply
    56,355.84x = 77,771.16 × 30,514.68
  4. Step 4: Simplify right side
    56,355.84x = 2,373,162,060.63
  5. Step 5: Solve for x
    x = 2,373,162,060.63/56,355.84
  6. Step 6: Final answer
    x = 42,110.31

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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.