Home / 56,214.42-77,573.52-30,720.18

Finding the Fourth Proportional to 56,214.42, 77,573.52 and 30,720.18

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Solution

The fourth proportional to 56,214.42, 77,573.52 and 30,720.18 is: 42,392.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,214.42 : 77,573.52 = 30,720.18 : x
  2. Step 2: Convert to fraction form
    56,214.42/77,573.52 = 30,720.18/x
  3. Step 3: Cross multiply
    56,214.42x = 77,573.52 × 30,720.18
  4. Step 4: Simplify right side
    56,214.42x = 2,383,072,497.63
  5. Step 5: Solve for x
    x = 2,383,072,497.63/56,214.42
  6. Step 6: Final answer
    x = 42,392.55

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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.