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Finding the Fourth Proportional to 62,946.80, 94,420.20 and 21,393.80

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Solution

The fourth proportional to 62,946.80, 94,420.20 and 21,393.80 is: 32,090.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,946.80 : 94,420.20 = 21,393.80 : x
  2. Step 2: Convert to fraction form
    62,946.80/94,420.20 = 21,393.80/x
  3. Step 3: Cross multiply
    62,946.80x = 94,420.20 × 21,393.80
  4. Step 4: Simplify right side
    62,946.80x = 2,020,006,874.76
  5. Step 5: Solve for x
    x = 2,020,006,874.76/62,946.80
  6. Step 6: Final answer
    x = 32,090.70

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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.