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Finding the Fourth Proportional to 68,114.68, 93,990.90 and 37,895.20

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Solution

The fourth proportional to 68,114.68, 93,990.90 and 37,895.20 is: 52,291.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,114.68 : 93,990.90 = 37,895.20 : x
  2. Step 2: Convert to fraction form
    68,114.68/93,990.90 = 37,895.20/x
  3. Step 3: Cross multiply
    68,114.68x = 93,990.90 × 37,895.20
  4. Step 4: Simplify right side
    68,114.68x = 3,561,803,953.68
  5. Step 5: Solve for x
    x = 3,561,803,953.68/68,114.68
  6. Step 6: Final answer
    x = 52,291.28

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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.