Home / 68,639.34-102,925.20-28,646.22

Finding the Fourth Proportional to 68,639.34, 102,925.20 and 28,646.22

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Solution

The fourth proportional to 68,639.34, 102,925.20 and 28,646.22 is: 42,955.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,639.34 : 102,925.20 = 28,646.22 : x
  2. Step 2: Convert to fraction form
    68,639.34/102,925.20 = 28,646.22/x
  3. Step 3: Cross multiply
    68,639.34x = 102,925.20 × 28,646.22
  4. Step 4: Simplify right side
    68,639.34x = 2,948,417,922.74
  5. Step 5: Solve for x
    x = 2,948,417,922.74/68,639.34
  6. Step 6: Final answer
    x = 42,955.22

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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.