Home / 76,320.80-105,325.44-44,484.56

Finding the Fourth Proportional to 76,320.80, 105,325.44 and 44,484.56

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Solution

The fourth proportional to 76,320.80, 105,325.44 and 44,484.56 is: 61,390.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,320.80 : 105,325.44 = 44,484.56 : x
  2. Step 2: Convert to fraction form
    76,320.80/105,325.44 = 44,484.56/x
  3. Step 3: Cross multiply
    76,320.80x = 105,325.44 × 44,484.56
  4. Step 4: Simplify right side
    76,320.80x = 4,685,355,855.21
  5. Step 5: Solve for x
    x = 4,685,355,855.21/76,320.80
  6. Step 6: Final answer
    x = 61,390.29

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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.