Home / 52,064.34-78,095.82-12,621.81

Finding the Fourth Proportional to 52,064.34, 78,095.82 and 12,621.81

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Solution

The fourth proportional to 52,064.34, 78,095.82 and 12,621.81 is: 18,932.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,064.34 : 78,095.82 = 12,621.81 : x
  2. Step 2: Convert to fraction form
    52,064.34/78,095.82 = 12,621.81/x
  3. Step 3: Cross multiply
    52,064.34x = 78,095.82 × 12,621.81
  4. Step 4: Simplify right side
    52,064.34x = 985,710,601.83
  5. Step 5: Solve for x
    x = 985,710,601.83/52,064.34
  6. Step 6: Final answer
    x = 18,932.55

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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.