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Finding the Fourth Proportional to 56,955.36, 85,437.36 and 15,402

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Solution

The fourth proportional to 56,955.36, 85,437.36 and 15,402 is: 23,104.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,955.36 : 85,437.36 = 15,402 : x
  2. Step 2: Convert to fraction form
    56,955.36/85,437.36 = 15,402/x
  3. Step 3: Cross multiply
    56,955.36x = 85,437.36 × 15,402
  4. Step 4: Simplify right side
    56,955.36x = 1,315,906,218.72
  5. Step 5: Solve for x
    x = 1,315,906,218.72/56,955.36
  6. Step 6: Final answer
    x = 23,104.17

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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.