Home / 78,311.43-107,988.08-46,474.18

Finding the Fourth Proportional to 78,311.43, 107,988.08 and 46,474.18

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Solution

The fourth proportional to 78,311.43, 107,988.08 and 46,474.18 is: 64,085.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,311.43 : 107,988.08 = 46,474.18 : x
  2. Step 2: Convert to fraction form
    78,311.43/107,988.08 = 46,474.18/x
  3. Step 3: Cross multiply
    78,311.43x = 107,988.08 × 46,474.18
  4. Step 4: Simplify right side
    78,311.43x = 5,018,656,965.43
  5. Step 5: Solve for x
    x = 5,018,656,965.43/78,311.43
  6. Step 6: Final answer
    x = 64,085.88

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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.