Home / 68,020.16-93,680-58,585.28

Finding the Fourth Proportional to 68,020.16, 93,680 and 58,585.28

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Solution

The fourth proportional to 68,020.16, 93,680 and 58,585.28 is: 80,685.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,020.16 : 93,680 = 58,585.28 : x
  2. Step 2: Convert to fraction form
    68,020.16/93,680 = 58,585.28/x
  3. Step 3: Cross multiply
    68,020.16x = 93,680 × 58,585.28
  4. Step 4: Simplify right side
    68,020.16x = 5,488,269,030.40
  5. Step 5: Solve for x
    x = 5,488,269,030.40/68,020.16
  6. Step 6: Final answer
    x = 80,685.92

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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.