Home / 96,128.62-132,657.78-53,688.76

Finding the Fourth Proportional to 96,128.62, 132,657.78 and 53,688.76

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Solution

The fourth proportional to 96,128.62, 132,657.78 and 53,688.76 is: 74,090.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,128.62 : 132,657.78 = 53,688.76 : x
  2. Step 2: Convert to fraction form
    96,128.62/132,657.78 = 53,688.76/x
  3. Step 3: Cross multiply
    96,128.62x = 132,657.78 × 53,688.76
  4. Step 4: Simplify right side
    96,128.62x = 7,122,231,712.55
  5. Step 5: Solve for x
    x = 7,122,231,712.55/96,128.62
  6. Step 6: Final answer
    x = 74,090.65

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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.