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Finding the Fourth Proportional to 40,363.74, 60,543.15 and 19,318.74

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Solution

The fourth proportional to 40,363.74, 60,543.15 and 19,318.74 is: 28,976.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,363.74 : 60,543.15 = 19,318.74 : x
  2. Step 2: Convert to fraction form
    40,363.74/60,543.15 = 19,318.74/x
  3. Step 3: Cross multiply
    40,363.74x = 60,543.15 × 19,318.74
  4. Step 4: Simplify right side
    40,363.74x = 1,169,617,373.63
  5. Step 5: Solve for x
    x = 1,169,617,373.63/40,363.74
  6. Step 6: Final answer
    x = 28,976.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.