Home / 85,515.57-118,011.65-47,789.82

Finding the Fourth Proportional to 85,515.57, 118,011.65 and 47,789.82

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Solution

The fourth proportional to 85,515.57, 118,011.65 and 47,789.82 is: 65,950.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,515.57 : 118,011.65 = 47,789.82 : x
  2. Step 2: Convert to fraction form
    85,515.57/118,011.65 = 47,789.82/x
  3. Step 3: Cross multiply
    85,515.57x = 118,011.65 × 47,789.82
  4. Step 4: Simplify right side
    85,515.57x = 5,639,755,272.45
  5. Step 5: Solve for x
    x = 5,639,755,272.45/85,515.57
  6. Step 6: Final answer
    x = 65,950.04

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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.