Home / 78,983.90-118,482.06-26,393.60

Finding the Fourth Proportional to 78,983.90, 118,482.06 and 26,393.60

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Solution

The fourth proportional to 78,983.90, 118,482.06 and 26,393.60 is: 39,592.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,983.90 : 118,482.06 = 26,393.60 : x
  2. Step 2: Convert to fraction form
    78,983.90/118,482.06 = 26,393.60/x
  3. Step 3: Cross multiply
    78,983.90x = 118,482.06 × 26,393.60
  4. Step 4: Simplify right side
    78,983.90x = 3,127,168,098.82
  5. Step 5: Solve for x
    x = 3,127,168,098.82/78,983.90
  6. Step 6: Final answer
    x = 39,592.48

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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.