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Finding the Fourth Proportional to 86,395.92, 119,248.62 and 56,256.48

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Solution

The fourth proportional to 86,395.92, 119,248.62 and 56,256.48 is: 77,648.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,395.92 : 119,248.62 = 56,256.48 : x
  2. Step 2: Convert to fraction form
    86,395.92/119,248.62 = 56,256.48/x
  3. Step 3: Cross multiply
    86,395.92x = 119,248.62 × 56,256.48
  4. Step 4: Simplify right side
    86,395.92x = 6,708,507,606.06
  5. Step 5: Solve for x
    x = 6,708,507,606.06/86,395.92
  6. Step 6: Final answer
    x = 77,648.43

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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.