Home / 56,335.55-77,743.11-30,842.09

Finding the Fourth Proportional to 56,335.55, 77,743.11 and 30,842.09

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Solution

The fourth proportional to 56,335.55, 77,743.11 and 30,842.09 is: 42,562.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,335.55 : 77,743.11 = 30,842.09 : x
  2. Step 2: Convert to fraction form
    56,335.55/77,743.11 = 30,842.09/x
  3. Step 3: Cross multiply
    56,335.55x = 77,743.11 × 30,842.09
  4. Step 4: Simplify right side
    56,335.55x = 2,397,759,606.78
  5. Step 5: Solve for x
    x = 2,397,759,606.78/56,335.55
  6. Step 6: Final answer
    x = 42,562.11

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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.