Home / 76,713.84-105,810.57-51,207.35

Finding the Fourth Proportional to 76,713.84, 105,810.57 and 51,207.35

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Solution

The fourth proportional to 76,713.84, 105,810.57 and 51,207.35 is: 70,629.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,713.84 : 105,810.57 = 51,207.35 : x
  2. Step 2: Convert to fraction form
    76,713.84/105,810.57 = 51,207.35/x
  3. Step 3: Cross multiply
    76,713.84x = 105,810.57 × 51,207.35
  4. Step 4: Simplify right side
    76,713.84x = 5,418,278,362.64
  5. Step 5: Solve for x
    x = 5,418,278,362.64/76,713.84
  6. Step 6: Final answer
    x = 70,629.74

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1.5x scale

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.