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Finding the Fourth Proportional to 64,955.20, 97,432.80 and 61,018.60

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Solution

The fourth proportional to 64,955.20, 97,432.80 and 61,018.60 is: 91,527.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,955.20 : 97,432.80 = 61,018.60 : x
  2. Step 2: Convert to fraction form
    64,955.20/97,432.80 = 61,018.60/x
  3. Step 3: Cross multiply
    64,955.20x = 97,432.80 × 61,018.60
  4. Step 4: Simplify right side
    64,955.20x = 5,945,213,050.08
  5. Step 5: Solve for x
    x = 5,945,213,050.08/64,955.20
  6. Step 6: Final answer
    x = 91,527.90

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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.