Home / 56,078.84-77,390.06-31,875.96

Finding the Fourth Proportional to 56,078.84, 77,390.06 and 31,875.96

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Solution

The fourth proportional to 56,078.84, 77,390.06 and 31,875.96 is: 43,989.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,078.84 : 77,390.06 = 31,875.96 : x
  2. Step 2: Convert to fraction form
    56,078.84/77,390.06 = 31,875.96/x
  3. Step 3: Cross multiply
    56,078.84x = 77,390.06 × 31,875.96
  4. Step 4: Simplify right side
    56,078.84x = 2,466,882,297.58
  5. Step 5: Solve for x
    x = 2,466,882,297.58/56,078.84
  6. Step 6: Final answer
    x = 43,989.54

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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.