Home / 93,728.50-129,263.54-66,450.71

Finding the Fourth Proportional to 93,728.50, 129,263.54 and 66,450.71

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Solution

The fourth proportional to 93,728.50, 129,263.54 and 66,450.71 is: 91,644.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,728.50 : 129,263.54 = 66,450.71 : x
  2. Step 2: Convert to fraction form
    93,728.50/129,263.54 = 66,450.71/x
  3. Step 3: Cross multiply
    93,728.50x = 129,263.54 × 66,450.71
  4. Step 4: Simplify right side
    93,728.50x = 8,589,654,001.02
  5. Step 5: Solve for x
    x = 8,589,654,001.02/93,728.50
  6. Step 6: Final answer
    x = 91,644.00

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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.