Home / 82,855.10-114,341.32-45,129.35

Finding the Fourth Proportional to 82,855.10, 114,341.32 and 45,129.35

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Solution

The fourth proportional to 82,855.10, 114,341.32 and 45,129.35 is: 62,279.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,855.10 : 114,341.32 = 45,129.35 : x
  2. Step 2: Convert to fraction form
    82,855.10/114,341.32 = 45,129.35/x
  3. Step 3: Cross multiply
    82,855.10x = 114,341.32 × 45,129.35
  4. Step 4: Simplify right side
    82,855.10x = 5,160,149,792.01
  5. Step 5: Solve for x
    x = 5,160,149,792.01/82,855.10
  6. Step 6: Final answer
    x = 62,279.20

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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.