Home / 76,715.53-105,859.86-42,727.18

Finding the Fourth Proportional to 76,715.53, 105,859.86 and 42,727.18

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Solution

The fourth proportional to 76,715.53, 105,859.86 and 42,727.18 is: 58,959.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,715.53 : 105,859.86 = 42,727.18 : x
  2. Step 2: Convert to fraction form
    76,715.53/105,859.86 = 42,727.18/x
  3. Step 3: Cross multiply
    76,715.53x = 105,859.86 × 42,727.18
  4. Step 4: Simplify right side
    76,715.53x = 4,523,093,292.99
  5. Step 5: Solve for x
    x = 4,523,093,292.99/76,715.53
  6. Step 6: Final answer
    x = 58,959.29

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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.