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Finding the Fourth Proportional to 65,114.40, 97,671.60 and 54,616.80

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Solution

The fourth proportional to 65,114.40, 97,671.60 and 54,616.80 is: 81,925.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,114.40 : 97,671.60 = 54,616.80 : x
  2. Step 2: Convert to fraction form
    65,114.40/97,671.60 = 54,616.80/x
  3. Step 3: Cross multiply
    65,114.40x = 97,671.60 × 54,616.80
  4. Step 4: Simplify right side
    65,114.40x = 5,334,510,242.88
  5. Step 5: Solve for x
    x = 5,334,510,242.88/65,114.40
  6. Step 6: Final answer
    x = 81,925.20

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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.