Home / 65,854.13-90,878.67-35,639.44

Finding the Fourth Proportional to 65,854.13, 90,878.67 and 35,639.44

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Solution

The fourth proportional to 65,854.13, 90,878.67 and 35,639.44 is: 49,182.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,854.13 : 90,878.67 = 35,639.44 : x
  2. Step 2: Convert to fraction form
    65,854.13/90,878.67 = 35,639.44/x
  3. Step 3: Cross multiply
    65,854.13x = 90,878.67 × 35,639.44
  4. Step 4: Simplify right side
    65,854.13x = 3,238,864,679.55
  5. Step 5: Solve for x
    x = 3,238,864,679.55/65,854.13
  6. Step 6: Final answer
    x = 49,182.41

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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.