Home / 56,215.14-77,575.94-30,720.94

Finding the Fourth Proportional to 56,215.14, 77,575.94 and 30,720.94

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Solution

The fourth proportional to 56,215.14, 77,575.94 and 30,720.94 is: 42,394.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,215.14 : 77,575.94 = 30,720.94 : x
  2. Step 2: Convert to fraction form
    56,215.14/77,575.94 = 30,720.94/x
  3. Step 3: Cross multiply
    56,215.14x = 77,575.94 × 30,720.94
  4. Step 4: Simplify right side
    56,215.14x = 2,383,205,798.18
  5. Step 5: Solve for x
    x = 2,383,205,798.18/56,215.14
  6. Step 6: Final answer
    x = 42,394.38

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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.