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Finding the Fourth Proportional to 76,260.28, 105,238.91 and 42,726.28

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Solution

The fourth proportional to 76,260.28, 105,238.91 and 42,726.28 is: 58,962.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,260.28 : 105,238.91 = 42,726.28 : x
  2. Step 2: Convert to fraction form
    76,260.28/105,238.91 = 42,726.28/x
  3. Step 3: Cross multiply
    76,260.28x = 105,238.91 × 42,726.28
  4. Step 4: Simplify right side
    76,260.28x = 4,496,466,609.36
  5. Step 5: Solve for x
    x = 4,496,466,609.36/76,260.28
  6. Step 6: Final answer
    x = 58,962.11

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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.