Home / 52,478.06-78,702.68-31,401.51

Finding the Fourth Proportional to 52,478.06, 78,702.68 and 31,401.51

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Solution

The fourth proportional to 52,478.06, 78,702.68 and 31,401.51 is: 47,093.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,478.06 : 78,702.68 = 31,401.51 : x
  2. Step 2: Convert to fraction form
    52,478.06/78,702.68 = 31,401.51/x
  3. Step 3: Cross multiply
    52,478.06x = 78,702.68 × 31,401.51
  4. Step 4: Simplify right side
    52,478.06x = 2,471,382,836.04
  5. Step 5: Solve for x
    x = 2,471,382,836.04/52,478.06
  6. Step 6: Final answer
    x = 47,093.64

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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.