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Finding the Fourth Proportional to 76,089.96, 105,004.14 and 42,555.96

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Solution

The fourth proportional to 76,089.96, 105,004.14 and 42,555.96 is: 58,727.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,089.96 : 105,004.14 = 42,555.96 : x
  2. Step 2: Convert to fraction form
    76,089.96/105,004.14 = 42,555.96/x
  3. Step 3: Cross multiply
    76,089.96x = 105,004.14 × 42,555.96
  4. Step 4: Simplify right side
    76,089.96x = 4,468,551,981.67
  5. Step 5: Solve for x
    x = 4,468,551,981.67/76,089.96
  6. Step 6: Final answer
    x = 58,727.22

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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.