Home / 76,313.24-105,308.61-42,319.06

Finding the Fourth Proportional to 76,313.24, 105,308.61 and 42,319.06

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Solution

The fourth proportional to 76,313.24, 105,308.61 and 42,319.06 is: 58,398.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,313.24 : 105,308.61 = 42,319.06 : x
  2. Step 2: Convert to fraction form
    76,313.24/105,308.61 = 42,319.06/x
  3. Step 3: Cross multiply
    76,313.24x = 105,308.61 × 42,319.06
  4. Step 4: Simplify right side
    76,313.24x = 4,456,560,963.14
  5. Step 5: Solve for x
    x = 4,456,560,963.14/76,313.24
  6. Step 6: Final answer
    x = 58,398.27

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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.