Home / 81,466.41-122,265.63-42,034.80

Finding the Fourth Proportional to 81,466.41, 122,265.63 and 42,034.80

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Solution

The fourth proportional to 81,466.41, 122,265.63 and 42,034.80 is: 63,086.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,466.41 : 122,265.63 = 42,034.80 : x
  2. Step 2: Convert to fraction form
    81,466.41/122,265.63 = 42,034.80/x
  3. Step 3: Cross multiply
    81,466.41x = 122,265.63 × 42,034.80
  4. Step 4: Simplify right side
    81,466.41x = 5,139,411,303.92
  5. Step 5: Solve for x
    x = 5,139,411,303.92/81,466.41
  6. Step 6: Final answer
    x = 63,086.26

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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.