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Finding the Fourth Proportional to 56,443.44, 77,888.70 and 30,944.88

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Solution

The fourth proportional to 56,443.44, 77,888.70 and 30,944.88 is: 42,702.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,443.44 : 77,888.70 = 30,944.88 : x
  2. Step 2: Convert to fraction form
    56,443.44/77,888.70 = 30,944.88/x
  3. Step 3: Cross multiply
    56,443.44x = 77,888.70 × 30,944.88
  4. Step 4: Simplify right side
    56,443.44x = 2,410,256,474.86
  5. Step 5: Solve for x
    x = 2,410,256,474.86/56,443.44
  6. Step 6: Final answer
    x = 42,702.15

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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.