Home / 66,285.28-99,427.89-54,573.88

Finding the Fourth Proportional to 66,285.28, 99,427.89 and 54,573.88

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Solution

The fourth proportional to 66,285.28, 99,427.89 and 54,573.88 is: 81,860.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,285.28 : 99,427.89 = 54,573.88 : x
  2. Step 2: Convert to fraction form
    66,285.28/99,427.89 = 54,573.88/x
  3. Step 3: Cross multiply
    66,285.28x = 99,427.89 × 54,573.88
  4. Step 4: Simplify right side
    66,285.28x = 5,426,165,737.51
  5. Step 5: Solve for x
    x = 5,426,165,737.51/66,285.28
  6. Step 6: Final answer
    x = 81,860.80

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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.