Home / 93,743.76-129,231.84-66,839.64

Finding the Fourth Proportional to 93,743.76, 129,231.84 and 66,839.64

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Solution

The fourth proportional to 93,743.76, 129,231.84 and 66,839.64 is: 92,142.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,743.76 : 129,231.84 = 66,839.64 : x
  2. Step 2: Convert to fraction form
    93,743.76/129,231.84 = 66,839.64/x
  3. Step 3: Cross multiply
    93,743.76x = 129,231.84 × 66,839.64
  4. Step 4: Simplify right side
    93,743.76x = 8,637,809,662.14
  5. Step 5: Solve for x
    x = 8,637,809,662.14/93,743.76
  6. Step 6: Final answer
    x = 92,142.77

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1.5x scale

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.