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Finding the Fourth Proportional to 80,598.80, 121,013.40 and 45,606.80

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Solution

The fourth proportional to 80,598.80, 121,013.40 and 45,606.80 is: 68,475.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,598.80 : 121,013.40 = 45,606.80 : x
  2. Step 2: Convert to fraction form
    80,598.80/121,013.40 = 45,606.80/x
  3. Step 3: Cross multiply
    80,598.80x = 121,013.40 × 45,606.80
  4. Step 4: Simplify right side
    80,598.80x = 5,519,033,931.12
  5. Step 5: Solve for x
    x = 5,519,033,931.12/80,598.80
  6. Step 6: Final answer
    x = 68,475.39

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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.