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Finding the Fourth Proportional to 86,992.92, 130,396.10 and 56,995.83

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Solution

The fourth proportional to 86,992.92, 130,396.10 and 56,995.83 is: 85,432.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,992.92 : 130,396.10 = 56,995.83 : x
  2. Step 2: Convert to fraction form
    86,992.92/130,396.10 = 56,995.83/x
  3. Step 3: Cross multiply
    86,992.92x = 130,396.10 × 56,995.83
  4. Step 4: Simplify right side
    86,992.92x = 7,432,033,948.26
  5. Step 5: Solve for x
    x = 7,432,033,948.26/86,992.92
  6. Step 6: Final answer
    x = 85,432.63

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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.