Home / 80,528.16-120,835.68-47,313.10

Finding the Fourth Proportional to 80,528.16, 120,835.68 and 47,313.10

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Solution

The fourth proportional to 80,528.16, 120,835.68 and 47,313.10 is: 70,995.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,528.16 : 120,835.68 = 47,313.10 : x
  2. Step 2: Convert to fraction form
    80,528.16/120,835.68 = 47,313.10/x
  3. Step 3: Cross multiply
    80,528.16x = 120,835.68 × 47,313.10
  4. Step 4: Simplify right side
    80,528.16x = 5,717,110,611.41
  5. Step 5: Solve for x
    x = 5,717,110,611.41/80,528.16
  6. Step 6: Final answer
    x = 70,995.17

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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.