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Finding the Fourth Proportional to 56,503.41, 84,722.31 and 21,423.93

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Solution

The fourth proportional to 56,503.41, 84,722.31 and 21,423.93 is: 32,123.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,503.41 : 84,722.31 = 21,423.93 : x
  2. Step 2: Convert to fraction form
    56,503.41/84,722.31 = 21,423.93/x
  3. Step 3: Cross multiply
    56,503.41x = 84,722.31 × 21,423.93
  4. Step 4: Simplify right side
    56,503.41x = 1,815,084,838.88
  5. Step 5: Solve for x
    x = 1,815,084,838.88/56,503.41
  6. Step 6: Final answer
    x = 32,123.46

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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.