Home / 76,685.07-105,734.88-52,497.66

Finding the Fourth Proportional to 76,685.07, 105,734.88 and 52,497.66

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Solution

The fourth proportional to 76,685.07, 105,734.88 and 52,497.66 is: 72,384.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,685.07 : 105,734.88 = 52,497.66 : x
  2. Step 2: Convert to fraction form
    76,685.07/105,734.88 = 52,497.66/x
  3. Step 3: Cross multiply
    76,685.07x = 105,734.88 × 52,497.66
  4. Step 4: Simplify right side
    76,685.07x = 5,550,833,780.38
  5. Step 5: Solve for x
    x = 5,550,833,780.38/76,685.07
  6. Step 6: Final answer
    x = 72,384.80

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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.