Home / 85,688.04-118,233-55,469.16

Finding the Fourth Proportional to 85,688.04, 118,233 and 55,469.16

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Solution

The fourth proportional to 85,688.04, 118,233 and 55,469.16 is: 76,536.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,688.04 : 118,233 = 55,469.16 : x
  2. Step 2: Convert to fraction form
    85,688.04/118,233 = 55,469.16/x
  3. Step 3: Cross multiply
    85,688.04x = 118,233 × 55,469.16
  4. Step 4: Simplify right side
    85,688.04x = 6,558,285,194.28
  5. Step 5: Solve for x
    x = 6,558,285,194.28/85,688.04
  6. Step 6: Final answer
    x = 76,536.76

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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.