Home / 56,160.88-77,502.21-30,667.52

Finding the Fourth Proportional to 56,160.88, 77,502.21 and 30,667.52

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Solution

The fourth proportional to 56,160.88, 77,502.21 and 30,667.52 is: 42,321.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,160.88 : 77,502.21 = 30,667.52 : x
  2. Step 2: Convert to fraction form
    56,160.88/77,502.21 = 30,667.52/x
  3. Step 3: Cross multiply
    56,160.88x = 77,502.21 × 30,667.52
  4. Step 4: Simplify right side
    56,160.88x = 2,376,800,575.22
  5. Step 5: Solve for x
    x = 2,376,800,575.22/56,160.88
  6. Step 6: Final answer
    x = 42,321.28

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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.