Home / 76,377.60-105,396.31-46,145.05

Finding the Fourth Proportional to 76,377.60, 105,396.31 and 46,145.05

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Solution

The fourth proportional to 76,377.60, 105,396.31 and 46,145.05 is: 63,677.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,377.60 : 105,396.31 = 46,145.05 : x
  2. Step 2: Convert to fraction form
    76,377.60/105,396.31 = 46,145.05/x
  3. Step 3: Cross multiply
    76,377.60x = 105,396.31 × 46,145.05
  4. Step 4: Simplify right side
    76,377.60x = 4,863,517,994.77
  5. Step 5: Solve for x
    x = 4,863,517,994.77/76,377.60
  6. Step 6: Final answer
    x = 63,677.28

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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.