Home / 93,129.82-128,519.14-50,688.66

Finding the Fourth Proportional to 93,129.82, 128,519.14 and 50,688.66

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Solution

The fourth proportional to 93,129.82, 128,519.14 and 50,688.66 is: 69,950.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,129.82 : 128,519.14 = 50,688.66 : x
  2. Step 2: Convert to fraction form
    93,129.82/128,519.14 = 50,688.66/x
  3. Step 3: Cross multiply
    93,129.82x = 128,519.14 × 50,688.66
  4. Step 4: Simplify right side
    93,129.82x = 6,514,462,990.95
  5. Step 5: Solve for x
    x = 6,514,462,990.95/93,129.82
  6. Step 6: Final answer
    x = 69,950.34

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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.