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Finding the Fourth Proportional to 74,544.86, 102,909.98 and 57,510.86

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Solution

The fourth proportional to 74,544.86, 102,909.98 and 57,510.86 is: 79,394.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,544.86 : 102,909.98 = 57,510.86 : x
  2. Step 2: Convert to fraction form
    74,544.86/102,909.98 = 57,510.86/x
  3. Step 3: Cross multiply
    74,544.86x = 102,909.98 × 57,510.86
  4. Step 4: Simplify right side
    74,544.86x = 5,918,440,650.28
  5. Step 5: Solve for x
    x = 5,918,440,650.28/74,544.86
  6. Step 6: Final answer
    x = 79,394.35

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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.