Home / 76,322.87-105,377.69-47,686.13

Finding the Fourth Proportional to 76,322.87, 105,377.69 and 47,686.13

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Solution

The fourth proportional to 76,322.87, 105,377.69 and 47,686.13 is: 65,839.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,322.87 : 105,377.69 = 47,686.13 : x
  2. Step 2: Convert to fraction form
    76,322.87/105,377.69 = 47,686.13/x
  3. Step 3: Cross multiply
    76,322.87x = 105,377.69 × 47,686.13
  4. Step 4: Simplify right side
    76,322.87x = 5,025,054,211.93
  5. Step 5: Solve for x
    x = 5,025,054,211.93/76,322.87
  6. Step 6: Final answer
    x = 65,839.43

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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.