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Finding the Fourth Proportional to 56,160.78, 84,239.54 and 14,607.78

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Solution

The fourth proportional to 56,160.78, 84,239.54 and 14,607.78 is: 21,911.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,160.78 : 84,239.54 = 14,607.78 : x
  2. Step 2: Convert to fraction form
    56,160.78/84,239.54 = 14,607.78/x
  3. Step 3: Cross multiply
    56,160.78x = 84,239.54 × 14,607.78
  4. Step 4: Simplify right side
    56,160.78x = 1,230,552,415.63
  5. Step 5: Solve for x
    x = 1,230,552,415.63/56,160.78
  6. Step 6: Final answer
    x = 21,911.24

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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.