Home / 82,569.39-113,980.62-55,748.21

Finding the Fourth Proportional to 82,569.39, 113,980.62 and 55,748.21

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Solution

The fourth proportional to 82,569.39, 113,980.62 and 55,748.21 is: 76,956.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,569.39 : 113,980.62 = 55,748.21 : x
  2. Step 2: Convert to fraction form
    82,569.39/113,980.62 = 55,748.21/x
  3. Step 3: Cross multiply
    82,569.39x = 113,980.62 × 55,748.21
  4. Step 4: Simplify right side
    82,569.39x = 6,354,214,969.79
  5. Step 5: Solve for x
    x = 6,354,214,969.79/82,569.39
  6. Step 6: Final answer
    x = 76,956.06

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1.5x scale

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.