Home / 82,972.08-124,341.48-36,126.72

Finding the Fourth Proportional to 82,972.08, 124,341.48 and 36,126.72

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Solution

The fourth proportional to 82,972.08, 124,341.48 and 36,126.72 is: 54,139.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,972.08 : 124,341.48 = 36,126.72 : x
  2. Step 2: Convert to fraction form
    82,972.08/124,341.48 = 36,126.72/x
  3. Step 3: Cross multiply
    82,972.08x = 124,341.48 × 36,126.72
  4. Step 4: Simplify right side
    82,972.08x = 4,492,049,832.35
  5. Step 5: Solve for x
    x = 4,492,049,832.35/82,972.08
  6. Step 6: Final answer
    x = 54,139.29

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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.