Home / 93,131.57-128,518.14-50,689.19

Finding the Fourth Proportional to 93,131.57, 128,518.14 and 50,689.19

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Solution

The fourth proportional to 93,131.57, 128,518.14 and 50,689.19 is: 69,949.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,131.57 : 128,518.14 = 50,689.19 : x
  2. Step 2: Convert to fraction form
    93,131.57/128,518.14 = 50,689.19/x
  3. Step 3: Cross multiply
    93,131.57x = 128,518.14 × 50,689.19
  4. Step 4: Simplify right side
    93,131.57x = 6,514,480,928.29
  5. Step 5: Solve for x
    x = 6,514,480,928.29/93,131.57
  6. Step 6: Final answer
    x = 69,949.22

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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.