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Finding the Fourth Proportional to 76,030.40, 114,034.80 and 26,112.80

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Solution

The fourth proportional to 76,030.40, 114,034.80 and 26,112.80 is: 39,165.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,030.40 : 114,034.80 = 26,112.80 : x
  2. Step 2: Convert to fraction form
    76,030.40/114,034.80 = 26,112.80/x
  3. Step 3: Cross multiply
    76,030.40x = 114,034.80 × 26,112.80
  4. Step 4: Simplify right side
    76,030.40x = 2,977,767,925.44
  5. Step 5: Solve for x
    x = 2,977,767,925.44/76,030.40
  6. Step 6: Final answer
    x = 39,165.49

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.