Home / 78,451.04-108,263.08-42,641.04

Finding the Fourth Proportional to 78,451.04, 108,263.08 and 42,641.04

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Solution

The fourth proportional to 78,451.04, 108,263.08 and 42,641.04 is: 58,844.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,451.04 : 108,263.08 = 42,641.04 : x
  2. Step 2: Convert to fraction form
    78,451.04/108,263.08 = 42,641.04/x
  3. Step 3: Cross multiply
    78,451.04x = 108,263.08 × 42,641.04
  4. Step 4: Simplify right side
    78,451.04x = 4,616,450,324.80
  5. Step 5: Solve for x
    x = 4,616,450,324.80/78,451.04
  6. Step 6: Final answer
    x = 58,844.99

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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.