Home / 78,605.10-117,675.59-51,901.83

Finding the Fourth Proportional to 78,605.10, 117,675.59 and 51,901.83

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Solution

The fourth proportional to 78,605.10, 117,675.59 and 51,901.83 is: 77,699.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,605.10 : 117,675.59 = 51,901.83 : x
  2. Step 2: Convert to fraction form
    78,605.10/117,675.59 = 51,901.83/x
  3. Step 3: Cross multiply
    78,605.10x = 117,675.59 × 51,901.83
  4. Step 4: Simplify right side
    78,605.10x = 6,107,578,207.82
  5. Step 5: Solve for x
    x = 6,107,578,207.82/78,605.10
  6. Step 6: Final answer
    x = 77,699.52

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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.