Home / 80,528.48-120,685.80-36,146.96

Finding the Fourth Proportional to 80,528.48, 120,685.80 and 36,146.96

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Solution

The fourth proportional to 80,528.48, 120,685.80 and 36,146.96 is: 54,172.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,528.48 : 120,685.80 = 36,146.96 : x
  2. Step 2: Convert to fraction form
    80,528.48/120,685.80 = 36,146.96/x
  3. Step 3: Cross multiply
    80,528.48x = 120,685.80 × 36,146.96
  4. Step 4: Simplify right side
    80,528.48x = 4,362,424,785.17
  5. Step 5: Solve for x
    x = 4,362,424,785.17/80,528.48
  6. Step 6: Final answer
    x = 54,172.45

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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.