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Finding the Fourth Proportional to 76,859.57, 114,525.29 and 68,475.15

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Solution

The fourth proportional to 76,859.57, 114,525.29 and 68,475.15 is: 102,032.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,859.57 : 114,525.29 = 68,475.15 : x
  2. Step 2: Convert to fraction form
    76,859.57/114,525.29 = 68,475.15/x
  3. Step 3: Cross multiply
    76,859.57x = 114,525.29 × 68,475.15
  4. Step 4: Simplify right side
    76,859.57x = 7,842,136,069.17
  5. Step 5: Solve for x
    x = 7,842,136,069.17/76,859.57
  6. Step 6: Final answer
    x = 102,032.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.