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Finding the Fourth Proportional to 70,440, 105,587.20 and 23,677.12

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Solution

The fourth proportional to 70,440, 105,587.20 and 23,677.12 is: 35,491.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,440 : 105,587.20 = 23,677.12 : x
  2. Step 2: Convert to fraction form
    70,440/105,587.20 = 23,677.12/x
  3. Step 3: Cross multiply
    70,440x = 105,587.20 × 23,677.12
  4. Step 4: Simplify right side
    70,440x = 2,500,000,804.86
  5. Step 5: Solve for x
    x = 2,500,000,804.86/70,440
  6. Step 6: Final answer
    x = 35,491.21

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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.