Home / 99,272.76-137,001.64-56,837.64

Finding the Fourth Proportional to 99,272.76, 137,001.64 and 56,837.64

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Solution

The fourth proportional to 99,272.76, 137,001.64 and 56,837.64 is: 78,438.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,272.76 : 137,001.64 = 56,837.64 : x
  2. Step 2: Convert to fraction form
    99,272.76/137,001.64 = 56,837.64/x
  3. Step 3: Cross multiply
    99,272.76x = 137,001.64 × 56,837.64
  4. Step 4: Simplify right side
    99,272.76x = 7,786,849,893.73
  5. Step 5: Solve for x
    x = 7,786,849,893.73/99,272.76
  6. Step 6: Final answer
    x = 78,438.94

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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.