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Finding the Fourth Proportional to 86,513.72, 119,447.96 and 55,960.86

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Solution

The fourth proportional to 86,513.72, 119,447.96 and 55,960.86 is: 77,264.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,513.72 : 119,447.96 = 55,960.86 : x
  2. Step 2: Convert to fraction form
    86,513.72/119,447.96 = 55,960.86/x
  3. Step 3: Cross multiply
    86,513.72x = 119,447.96 × 55,960.86
  4. Step 4: Simplify right side
    86,513.72x = 6,684,410,566.85
  5. Step 5: Solve for x
    x = 6,684,410,566.85/86,513.72
  6. Step 6: Final answer
    x = 77,264.17

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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.