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Finding the Fourth Proportional to 93,880, 129,554.40 and 51,440.14

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Solution

The fourth proportional to 93,880, 129,554.40 and 51,440.14 is: 70,987.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,880 : 129,554.40 = 51,440.14 : x
  2. Step 2: Convert to fraction form
    93,880/129,554.40 = 51,440.14/x
  3. Step 3: Cross multiply
    93,880x = 129,554.40 × 51,440.14
  4. Step 4: Simplify right side
    93,880x = 6,664,296,473.62
  5. Step 5: Solve for x
    x = 6,664,296,473.62/93,880
  6. Step 6: Final answer
    x = 70,987.39

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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.