Home / 56,442.55-77,890.94-30,949.32

Finding the Fourth Proportional to 56,442.55, 77,890.94 and 30,949.32

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Solution

The fourth proportional to 56,442.55, 77,890.94 and 30,949.32 is: 42,710.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,442.55 : 77,890.94 = 30,949.32 : x
  2. Step 2: Convert to fraction form
    56,442.55/77,890.94 = 30,949.32/x
  3. Step 3: Cross multiply
    56,442.55x = 77,890.94 × 30,949.32
  4. Step 4: Simplify right side
    56,442.55x = 2,410,671,627.16
  5. Step 5: Solve for x
    x = 2,410,671,627.16/56,442.55
  6. Step 6: Final answer
    x = 42,710.18

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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.