Home / 93,147.12-128,543.31-50,705.82

Finding the Fourth Proportional to 93,147.12, 128,543.31 and 50,705.82

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Solution

The fourth proportional to 93,147.12, 128,543.31 and 50,705.82 is: 69,974.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,147.12 : 128,543.31 = 50,705.82 : x
  2. Step 2: Convert to fraction form
    93,147.12/128,543.31 = 50,705.82/x
  3. Step 3: Cross multiply
    93,147.12x = 128,543.31 × 50,705.82
  4. Step 4: Simplify right side
    93,147.12x = 6,517,893,939.06
  5. Step 5: Solve for x
    x = 6,517,893,939.06/93,147.12
  6. Step 6: Final answer
    x = 69,974.19

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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.