Home / 78,209.04-117,312.54-19,044.77

Finding the Fourth Proportional to 78,209.04, 117,312.54 and 19,044.77

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Solution

The fourth proportional to 78,209.04, 117,312.54 and 19,044.77 is: 28,566.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,209.04 : 117,312.54 = 19,044.77 : x
  2. Step 2: Convert to fraction form
    78,209.04/117,312.54 = 19,044.77/x
  3. Step 3: Cross multiply
    78,209.04x = 117,312.54 × 19,044.77
  4. Step 4: Simplify right side
    78,209.04x = 2,234,190,424.66
  5. Step 5: Solve for x
    x = 2,234,190,424.66/78,209.04
  6. Step 6: Final answer
    x = 28,566.91

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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.