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Finding the Fourth Proportional to 64,955.60, 97,433.40 and 54,020.60

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Solution

The fourth proportional to 64,955.60, 97,433.40 and 54,020.60 is: 81,030.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,955.60 : 97,433.40 = 54,020.60 : x
  2. Step 2: Convert to fraction form
    64,955.60/97,433.40 = 54,020.60/x
  3. Step 3: Cross multiply
    64,955.60x = 97,433.40 × 54,020.60
  4. Step 4: Simplify right side
    64,955.60x = 5,263,410,728.04
  5. Step 5: Solve for x
    x = 5,263,410,728.04/64,955.60
  6. Step 6: Final answer
    x = 81,030.90

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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.