Home / 90,428.41-135,643.77-62,340.95

Finding the Fourth Proportional to 90,428.41, 135,643.77 and 62,340.95

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Solution

The fourth proportional to 90,428.41, 135,643.77 and 62,340.95 is: 93,512.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,428.41 : 135,643.77 = 62,340.95 : x
  2. Step 2: Convert to fraction form
    90,428.41/135,643.77 = 62,340.95/x
  3. Step 3: Cross multiply
    90,428.41x = 135,643.77 × 62,340.95
  4. Step 4: Simplify right side
    90,428.41x = 8,456,161,483.38
  5. Step 5: Solve for x
    x = 8,456,161,483.38/90,428.41
  6. Step 6: Final answer
    x = 93,512.22

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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.