Home / 93,014.20-128,378.10-55,281.16

Finding the Fourth Proportional to 93,014.20, 128,378.10 and 55,281.16

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Solution

The fourth proportional to 93,014.20, 128,378.10 and 55,281.16 is: 76,299.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,014.20 : 128,378.10 = 55,281.16 : x
  2. Step 2: Convert to fraction form
    93,014.20/128,378.10 = 55,281.16/x
  3. Step 3: Cross multiply
    93,014.20x = 128,378.10 × 55,281.16
  4. Step 4: Simplify right side
    93,014.20x = 7,096,890,286.60
  5. Step 5: Solve for x
    x = 7,096,890,286.60/93,014.20
  6. Step 6: Final answer
    x = 76,299.00

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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.