Home / 80,811.32-111,462.48-70,036.70

Finding the Fourth Proportional to 80,811.32, 111,462.48 and 70,036.70

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Solution

The fourth proportional to 80,811.32, 111,462.48 and 70,036.70 is: 96,601.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,811.32 : 111,462.48 = 70,036.70 : x
  2. Step 2: Convert to fraction form
    80,811.32/111,462.48 = 70,036.70/x
  3. Step 3: Cross multiply
    80,811.32x = 111,462.48 × 70,036.70
  4. Step 4: Simplify right side
    80,811.32x = 7,806,463,715.70
  5. Step 5: Solve for x
    x = 7,806,463,715.70/80,811.32
  6. Step 6: Final answer
    x = 96,601.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.