Home / 92,825.61-139,216.09-42,857.70

Finding the Fourth Proportional to 92,825.61, 139,216.09 and 42,857.70

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Solution

The fourth proportional to 92,825.61, 139,216.09 and 42,857.70 is: 64,276.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,825.61 : 139,216.09 = 42,857.70 : x
  2. Step 2: Convert to fraction form
    92,825.61/139,216.09 = 42,857.70/x
  3. Step 3: Cross multiply
    92,825.61x = 139,216.09 × 42,857.70
  4. Step 4: Simplify right side
    92,825.61x = 5,966,481,420.39
  5. Step 5: Solve for x
    x = 5,966,481,420.39/92,825.61
  6. Step 6: Final answer
    x = 64,276.24

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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.