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Finding the Fourth Proportional to 93,969.64, 140,909.82 and 54,538.84

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Solution

The fourth proportional to 93,969.64, 140,909.82 and 54,538.84 is: 81,782.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,969.64 : 140,909.82 = 54,538.84 : x
  2. Step 2: Convert to fraction form
    93,969.64/140,909.82 = 54,538.84/x
  3. Step 3: Cross multiply
    93,969.64x = 140,909.82 × 54,538.84
  4. Step 4: Simplify right side
    93,969.64x = 7,685,058,127.41
  5. Step 5: Solve for x
    x = 7,685,058,127.41/93,969.64
  6. Step 6: Final answer
    x = 81,782.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.