Home / 74,345.12-102,596.64-42,515.36

Finding the Fourth Proportional to 74,345.12, 102,596.64 and 42,515.36

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Solution

The fourth proportional to 74,345.12, 102,596.64 and 42,515.36 is: 58,671.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,345.12 : 102,596.64 = 42,515.36 : x
  2. Step 2: Convert to fraction form
    74,345.12/102,596.64 = 42,515.36/x
  3. Step 3: Cross multiply
    74,345.12x = 102,596.64 × 42,515.36
  4. Step 4: Simplify right side
    74,345.12x = 4,361,933,084.39
  5. Step 5: Solve for x
    x = 4,361,933,084.39/74,345.12
  6. Step 6: Final answer
    x = 58,671.41

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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.