Home / 90,605.25-124,994.21-58,328.28

Finding the Fourth Proportional to 90,605.25, 124,994.21 and 58,328.28

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Solution

The fourth proportional to 90,605.25, 124,994.21 and 58,328.28 is: 80,466.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,605.25 : 124,994.21 = 58,328.28 : x
  2. Step 2: Convert to fraction form
    90,605.25/124,994.21 = 58,328.28/x
  3. Step 3: Cross multiply
    90,605.25x = 124,994.21 × 58,328.28
  4. Step 4: Simplify right side
    90,605.25x = 7,290,696,987.62
  5. Step 5: Solve for x
    x = 7,290,696,987.62/90,605.25
  6. Step 6: Final answer
    x = 80,466.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.