Home / 93,387.94-128,875.35-55,662.19

Finding the Fourth Proportional to 93,387.94, 128,875.35 and 55,662.19

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Solution

The fourth proportional to 93,387.94, 128,875.35 and 55,662.19 is: 76,813.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,387.94 : 128,875.35 = 55,662.19 : x
  2. Step 2: Convert to fraction form
    93,387.94/128,875.35 = 55,662.19/x
  3. Step 3: Cross multiply
    93,387.94x = 128,875.35 × 55,662.19
  4. Step 4: Simplify right side
    93,387.94x = 7,173,484,104.56
  5. Step 5: Solve for x
    x = 7,173,484,104.56/93,387.94
  6. Step 6: Final answer
    x = 76,813.82

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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.