Home / 80,515.08-111,111.28-44,218.08

Finding the Fourth Proportional to 80,515.08, 111,111.28 and 44,218.08

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Solution

The fourth proportional to 80,515.08, 111,111.28 and 44,218.08 is: 61,021.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,515.08 : 111,111.28 = 44,218.08 : x
  2. Step 2: Convert to fraction form
    80,515.08/111,111.28 = 44,218.08/x
  3. Step 3: Cross multiply
    80,515.08x = 111,111.28 × 44,218.08
  4. Step 4: Simplify right side
    80,515.08x = 4,913,127,357.40
  5. Step 5: Solve for x
    x = 4,913,127,357.40/80,515.08
  6. Step 6: Final answer
    x = 61,021.21

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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.