Home / 58,275.43-87,431.52-20,834.68

Finding the Fourth Proportional to 58,275.43, 87,431.52 and 20,834.68

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Solution

The fourth proportional to 58,275.43, 87,431.52 and 20,834.68 is: 31,258.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,275.43 : 87,431.52 = 20,834.68 : x
  2. Step 2: Convert to fraction form
    58,275.43/87,431.52 = 20,834.68/x
  3. Step 3: Cross multiply
    58,275.43x = 87,431.52 × 20,834.68
  4. Step 4: Simplify right side
    58,275.43x = 1,821,607,741.11
  5. Step 5: Solve for x
    x = 1,821,607,741.11/58,275.43
  6. Step 6: Final answer
    x = 31,258.59

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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.