Home / 76,173.21-105,019.74-58,239.81

Finding the Fourth Proportional to 76,173.21, 105,019.74 and 58,239.81

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Solution

The fourth proportional to 76,173.21, 105,019.74 and 58,239.81 is: 80,295.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,173.21 : 105,019.74 = 58,239.81 : x
  2. Step 2: Convert to fraction form
    76,173.21/105,019.74 = 58,239.81/x
  3. Step 3: Cross multiply
    76,173.21x = 105,019.74 × 58,239.81
  4. Step 4: Simplify right side
    76,173.21x = 6,116,329,703.85
  5. Step 5: Solve for x
    x = 6,116,329,703.85/76,173.21
  6. Step 6: Final answer
    x = 80,295.02

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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.