Home / 55,787.64-76,986.93-30,637.14

Finding the Fourth Proportional to 55,787.64, 76,986.93 and 30,637.14

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Solution

The fourth proportional to 55,787.64, 76,986.93 and 30,637.14 is: 42,279.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,787.64 : 76,986.93 = 30,637.14 : x
  2. Step 2: Convert to fraction form
    55,787.64/76,986.93 = 30,637.14/x
  3. Step 3: Cross multiply
    55,787.64x = 76,986.93 × 30,637.14
  4. Step 4: Simplify right side
    55,787.64x = 2,358,659,352.58
  5. Step 5: Solve for x
    x = 2,358,659,352.58/55,787.64
  6. Step 6: Final answer
    x = 42,279.25

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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.