Home / 99,533.70-137,354.13-57,089.52

Finding the Fourth Proportional to 99,533.70, 137,354.13 and 57,089.52

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Solution

The fourth proportional to 99,533.70, 137,354.13 and 57,089.52 is: 78,782.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,533.70 : 137,354.13 = 57,089.52 : x
  2. Step 2: Convert to fraction form
    99,533.70/137,354.13 = 57,089.52/x
  3. Step 3: Cross multiply
    99,533.70x = 137,354.13 × 57,089.52
  4. Step 4: Simplify right side
    99,533.70x = 7,841,481,351.72
  5. Step 5: Solve for x
    x = 7,841,481,351.72/99,533.70
  6. Step 6: Final answer
    x = 78,782.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.