Home / 68,343.68-94,312.14-40,068.20

Finding the Fourth Proportional to 68,343.68, 94,312.14 and 40,068.20

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Solution

The fourth proportional to 68,343.68, 94,312.14 and 40,068.20 is: 55,292.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,343.68 : 94,312.14 = 40,068.20 : x
  2. Step 2: Convert to fraction form
    68,343.68/94,312.14 = 40,068.20/x
  3. Step 3: Cross multiply
    68,343.68x = 94,312.14 × 40,068.20
  4. Step 4: Simplify right side
    68,343.68x = 3,778,917,687.95
  5. Step 5: Solve for x
    x = 3,778,917,687.95/68,343.68
  6. Step 6: Final answer
    x = 55,292.86

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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.