Home / 75,670.31-113,225.22-47,364.86

Finding the Fourth Proportional to 75,670.31, 113,225.22 and 47,364.86

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Solution

The fourth proportional to 75,670.31, 113,225.22 and 47,364.86 is: 70,871.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,670.31 : 113,225.22 = 47,364.86 : x
  2. Step 2: Convert to fraction form
    75,670.31/113,225.22 = 47,364.86/x
  3. Step 3: Cross multiply
    75,670.31x = 113,225.22 × 47,364.86
  4. Step 4: Simplify right side
    75,670.31x = 5,362,896,976.83
  5. Step 5: Solve for x
    x = 5,362,896,976.83/75,670.31
  6. Step 6: Final answer
    x = 70,871.88

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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.