Home / 73,680.24-101,709.36-55,780.32

Finding the Fourth Proportional to 73,680.24, 101,709.36 and 55,780.32

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Solution

The fourth proportional to 73,680.24, 101,709.36 and 55,780.32 is: 77,000.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,680.24 : 101,709.36 = 55,780.32 : x
  2. Step 2: Convert to fraction form
    73,680.24/101,709.36 = 55,780.32/x
  3. Step 3: Cross multiply
    73,680.24x = 101,709.36 × 55,780.32
  4. Step 4: Simplify right side
    73,680.24x = 5,673,380,647.80
  5. Step 5: Solve for x
    x = 5,673,380,647.80/73,680.24
  6. Step 6: Final answer
    x = 77,000.03

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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.