Home / 76,223.13-105,187.91-42,689.13

Finding the Fourth Proportional to 76,223.13, 105,187.91 and 42,689.13

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Solution

The fourth proportional to 76,223.13, 105,187.91 and 42,689.13 is: 58,910.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,223.13 : 105,187.91 = 42,689.13 : x
  2. Step 2: Convert to fraction form
    76,223.13/105,187.91 = 42,689.13/x
  3. Step 3: Cross multiply
    76,223.13x = 105,187.91 × 42,689.13
  4. Step 4: Simplify right side
    76,223.13x = 4,490,380,364.42
  5. Step 5: Solve for x
    x = 4,490,380,364.42/76,223.13
  6. Step 6: Final answer
    x = 58,910.99

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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.