Home / 77,699.10-116,537.10-21,533.35

Finding the Fourth Proportional to 77,699.10, 116,537.10 and 21,533.35

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Solution

The fourth proportional to 77,699.10, 116,537.10 and 21,533.35 is: 32,296.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,699.10 : 116,537.10 = 21,533.35 : x
  2. Step 2: Convert to fraction form
    77,699.10/116,537.10 = 21,533.35/x
  3. Step 3: Cross multiply
    77,699.10x = 116,537.10 × 21,533.35
  4. Step 4: Simplify right side
    77,699.10x = 2,509,434,162.29
  5. Step 5: Solve for x
    x = 2,509,434,162.29/77,699.10
  6. Step 6: Final answer
    x = 32,296.82

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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.