Home / 56,322.80-77,725.28-30,481.32

Finding the Fourth Proportional to 56,322.80, 77,725.28 and 30,481.32

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Solution

The fourth proportional to 56,322.80, 77,725.28 and 30,481.32 is: 42,064.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,322.80 : 77,725.28 = 30,481.32 : x
  2. Step 2: Convert to fraction form
    56,322.80/77,725.28 = 30,481.32/x
  3. Step 3: Cross multiply
    56,322.80x = 77,725.28 × 30,481.32
  4. Step 4: Simplify right side
    56,322.80x = 2,369,169,131.77
  5. Step 5: Solve for x
    x = 2,369,169,131.77/56,322.80
  6. Step 6: Final answer
    x = 42,064.12

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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.