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Finding the Fourth Proportional to 65,254.40, 97,816.80 and 30,132.80

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Solution

The fourth proportional to 65,254.40, 97,816.80 and 30,132.80 is: 45,169.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,254.40 : 97,816.80 = 30,132.80 : x
  2. Step 2: Convert to fraction form
    65,254.40/97,816.80 = 30,132.80/x
  3. Step 3: Cross multiply
    65,254.40x = 97,816.80 × 30,132.80
  4. Step 4: Simplify right side
    65,254.40x = 2,947,494,071.04
  5. Step 5: Solve for x
    x = 2,947,494,071.04/65,254.40
  6. Step 6: Final answer
    x = 45,169.28

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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.