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Finding the Fourth Proportional to 78,350.95, 117,482.30 and 25,030.41

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Solution

The fourth proportional to 78,350.95, 117,482.30 and 25,030.41 is: 37,531.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,350.95 : 117,482.30 = 25,030.41 : x
  2. Step 2: Convert to fraction form
    78,350.95/117,482.30 = 25,030.41/x
  3. Step 3: Cross multiply
    78,350.95x = 117,482.30 × 25,030.41
  4. Step 4: Simplify right side
    78,350.95x = 2,940,630,136.74
  5. Step 5: Solve for x
    x = 2,940,630,136.74/78,350.95
  6. Step 6: Final answer
    x = 37,531.52

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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.