Home / 85,422.53-128,146.03-26,263.17

Finding the Fourth Proportional to 85,422.53, 128,146.03 and 26,263.17

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Solution

The fourth proportional to 85,422.53, 128,146.03 and 26,263.17 is: 39,398.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,422.53 : 128,146.03 = 26,263.17 : x
  2. Step 2: Convert to fraction form
    85,422.53/128,146.03 = 26,263.17/x
  3. Step 3: Cross multiply
    85,422.53x = 128,146.03 × 26,263.17
  4. Step 4: Simplify right side
    85,422.53x = 3,365,520,905.06
  5. Step 5: Solve for x
    x = 3,365,520,905.06/85,422.53
  6. Step 6: Final answer
    x = 39,398.51

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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.