Home / 77,611.04-107,116.12-45,787.76

Finding the Fourth Proportional to 77,611.04, 107,116.12 and 45,787.76

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Solution

The fourth proportional to 77,611.04, 107,116.12 and 45,787.76 is: 63,194.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,611.04 : 107,116.12 = 45,787.76 : x
  2. Step 2: Convert to fraction form
    77,611.04/107,116.12 = 45,787.76/x
  3. Step 3: Cross multiply
    77,611.04x = 107,116.12 × 45,787.76
  4. Step 4: Simplify right side
    77,611.04x = 4,904,607,194.69
  5. Step 5: Solve for x
    x = 4,904,607,194.69/77,611.04
  6. Step 6: Final answer
    x = 63,194.71

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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.