Home / 51,518.89-77,273.54-19,909.90

Finding the Fourth Proportional to 51,518.89, 77,273.54 and 19,909.90

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Solution

The fourth proportional to 51,518.89, 77,273.54 and 19,909.90 is: 29,863.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,518.89 : 77,273.54 = 19,909.90 : x
  2. Step 2: Convert to fraction form
    51,518.89/77,273.54 = 19,909.90/x
  3. Step 3: Cross multiply
    51,518.89x = 77,273.54 × 19,909.90
  4. Step 4: Simplify right side
    51,518.89x = 1,538,508,637.74
  5. Step 5: Solve for x
    x = 1,538,508,637.74/51,518.89
  6. Step 6: Final answer
    x = 29,863.00

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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.