Home / 55,787.63-76,987.53-30,637.13

Finding the Fourth Proportional to 55,787.63, 76,987.53 and 30,637.13

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Solution

The fourth proportional to 55,787.63, 76,987.53 and 30,637.13 is: 42,279.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,787.63 : 76,987.53 = 30,637.13 : x
  2. Step 2: Convert to fraction form
    55,787.63/76,987.53 = 30,637.13/x
  3. Step 3: Cross multiply
    55,787.63x = 76,987.53 × 30,637.13
  4. Step 4: Simplify right side
    55,787.63x = 2,358,676,580.05
  5. Step 5: Solve for x
    x = 2,358,676,580.05/55,787.63
  6. Step 6: Final answer
    x = 42,279.57

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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.