Home / 76,106.12-105,022.73-42,113.99

Finding the Fourth Proportional to 76,106.12, 105,022.73 and 42,113.99

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Solution

The fourth proportional to 76,106.12, 105,022.73 and 42,113.99 is: 58,115.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,106.12 : 105,022.73 = 42,113.99 : x
  2. Step 2: Convert to fraction form
    76,106.12/105,022.73 = 42,113.99/x
  3. Step 3: Cross multiply
    76,106.12x = 105,022.73 × 42,113.99
  4. Step 4: Simplify right side
    76,106.12x = 4,422,925,465.31
  5. Step 5: Solve for x
    x = 4,422,925,465.31/76,106.12
  6. Step 6: Final answer
    x = 58,115.24

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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.