Home / 51,756.48-71,395.92-42,750.72

Finding the Fourth Proportional to 51,756.48, 71,395.92 and 42,750.72

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Solution

The fourth proportional to 51,756.48, 71,395.92 and 42,750.72 is: 58,972.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,756.48 : 71,395.92 = 42,750.72 : x
  2. Step 2: Convert to fraction form
    51,756.48/71,395.92 = 42,750.72/x
  3. Step 3: Cross multiply
    51,756.48x = 71,395.92 × 42,750.72
  4. Step 4: Simplify right side
    51,756.48x = 3,052,226,985.06
  5. Step 5: Solve for x
    x = 3,052,226,985.06/51,756.48
  6. Step 6: Final answer
    x = 58,972.85

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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.