Home / 52,000.48-77,930.04-21,989.78

Finding the Fourth Proportional to 52,000.48, 77,930.04 and 21,989.78

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Solution

The fourth proportional to 52,000.48, 77,930.04 and 21,989.78 is: 32,954.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,000.48 : 77,930.04 = 21,989.78 : x
  2. Step 2: Convert to fraction form
    52,000.48/77,930.04 = 21,989.78/x
  3. Step 3: Cross multiply
    52,000.48x = 77,930.04 × 21,989.78
  4. Step 4: Simplify right side
    52,000.48x = 1,713,664,045.34
  5. Step 5: Solve for x
    x = 1,713,664,045.34/52,000.48
  6. Step 6: Final answer
    x = 32,954.78

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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.