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Finding the Fourth Proportional to 86,595.54, 130,007.52 and 85,599.24

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Solution

The fourth proportional to 86,595.54, 130,007.52 and 85,599.24 is: 128,511.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,595.54 : 130,007.52 = 85,599.24 : x
  2. Step 2: Convert to fraction form
    86,595.54/130,007.52 = 85,599.24/x
  3. Step 3: Cross multiply
    86,595.54x = 130,007.52 × 85,599.24
  4. Step 4: Simplify right side
    86,595.54x = 11,128,544,906.28
  5. Step 5: Solve for x
    x = 11,128,544,906.28/86,595.54
  6. Step 6: Final answer
    x = 128,511.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.