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Finding the Fourth Proportional to 43,234, 64,767.08 and 28,397.90

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Solution

The fourth proportional to 43,234, 64,767.08 and 28,397.90 is: 42,541.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,234 : 64,767.08 = 28,397.90 : x
  2. Step 2: Convert to fraction form
    43,234/64,767.08 = 28,397.90/x
  3. Step 3: Cross multiply
    43,234x = 64,767.08 × 28,397.90
  4. Step 4: Simplify right side
    43,234x = 1,839,249,061.13
  5. Step 5: Solve for x
    x = 1,839,249,061.13/43,234
  6. Step 6: Final answer
    x = 42,541.73

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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.