Home / 76,794.18-105,963.12-42,795.21

Finding the Fourth Proportional to 76,794.18, 105,963.12 and 42,795.21

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Solution

The fourth proportional to 76,794.18, 105,963.12 and 42,795.21 is: 59,050.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,794.18 : 105,963.12 = 42,795.21 : x
  2. Step 2: Convert to fraction form
    76,794.18/105,963.12 = 42,795.21/x
  3. Step 3: Cross multiply
    76,794.18x = 105,963.12 × 42,795.21
  4. Step 4: Simplify right side
    76,794.18x = 4,534,713,972.66
  5. Step 5: Solve for x
    x = 4,534,713,972.66/76,794.18
  6. Step 6: Final answer
    x = 59,050.23

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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.