Home / 68,507.09-102,690.59-38,862.31

Finding the Fourth Proportional to 68,507.09, 102,690.59 and 38,862.31

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Solution

The fourth proportional to 68,507.09, 102,690.59 and 38,862.31 is: 58,253.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,507.09 : 102,690.59 = 38,862.31 : x
  2. Step 2: Convert to fraction form
    68,507.09/102,690.59 = 38,862.31/x
  3. Step 3: Cross multiply
    68,507.09x = 102,690.59 × 38,862.31
  4. Step 4: Simplify right side
    68,507.09x = 3,990,792,995.35
  5. Step 5: Solve for x
    x = 3,990,792,995.35/68,507.09
  6. Step 6: Final answer
    x = 58,253.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.