Home / 81,547.17-122,372.73-37,178.34

Finding the Fourth Proportional to 81,547.17, 122,372.73 and 37,178.34

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Solution

The fourth proportional to 81,547.17, 122,372.73 and 37,178.34 is: 55,791.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,547.17 : 122,372.73 = 37,178.34 : x
  2. Step 2: Convert to fraction form
    81,547.17/122,372.73 = 37,178.34/x
  3. Step 3: Cross multiply
    81,547.17x = 122,372.73 × 37,178.34
  4. Step 4: Simplify right side
    81,547.17x = 4,549,614,962.67
  5. Step 5: Solve for x
    x = 4,549,614,962.67/81,547.17
  6. Step 6: Final answer
    x = 55,791.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.