Home / 76,310.14-105,305.07-42,320.02

Finding the Fourth Proportional to 76,310.14, 105,305.07 and 42,320.02

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Solution

The fourth proportional to 76,310.14, 105,305.07 and 42,320.02 is: 58,400.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,310.14 : 105,305.07 = 42,320.02 : x
  2. Step 2: Convert to fraction form
    76,310.14/105,305.07 = 42,320.02/x
  3. Step 3: Cross multiply
    76,310.14x = 105,305.07 × 42,320.02
  4. Step 4: Simplify right side
    76,310.14x = 4,456,512,668.50
  5. Step 5: Solve for x
    x = 4,456,512,668.50/76,310.14
  6. Step 6: Final answer
    x = 58,400.01

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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.