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Finding the Fourth Proportional to 56,357.44, 77,774.48 and 30,864.88

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Solution

The fourth proportional to 56,357.44, 77,774.48 and 30,864.88 is: 42,594.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,357.44 : 77,774.48 = 30,864.88 : x
  2. Step 2: Convert to fraction form
    56,357.44/77,774.48 = 30,864.88/x
  3. Step 3: Cross multiply
    56,357.44x = 77,774.48 × 30,864.88
  4. Step 4: Simplify right side
    56,357.44x = 2,400,499,992.26
  5. Step 5: Solve for x
    x = 2,400,499,992.26/56,357.44
  6. Step 6: Final answer
    x = 42,594.20

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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.