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Finding the Fourth Proportional to 85,663.84, 118,228.53 and 49,358.22

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Solution

The fourth proportional to 85,663.84, 118,228.53 and 49,358.22 is: 68,121.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,663.84 : 118,228.53 = 49,358.22 : x
  2. Step 2: Convert to fraction form
    85,663.84/118,228.53 = 49,358.22/x
  3. Step 3: Cross multiply
    85,663.84x = 118,228.53 × 49,358.22
  4. Step 4: Simplify right side
    85,663.84x = 5,835,549,794.02
  5. Step 5: Solve for x
    x = 5,835,549,794.02/85,663.84
  6. Step 6: Final answer
    x = 68,121.51

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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.