Home / 76,220.99-105,188.12-42,687.23

Finding the Fourth Proportional to 76,220.99, 105,188.12 and 42,687.23

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Solution

The fourth proportional to 76,220.99, 105,188.12 and 42,687.23 is: 58,910.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,220.99 : 105,188.12 = 42,687.23 : x
  2. Step 2: Convert to fraction form
    76,220.99/105,188.12 = 42,687.23/x
  3. Step 3: Cross multiply
    76,220.99x = 105,188.12 × 42,687.23
  4. Step 4: Simplify right side
    76,220.99x = 4,490,189,471.71
  5. Step 5: Solve for x
    x = 4,490,189,471.71/76,220.99
  6. Step 6: Final answer
    x = 58,910.14

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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.