Home / 90,045.04-124,261.68-49,761.60

Finding the Fourth Proportional to 90,045.04, 124,261.68 and 49,761.60

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Solution

The fourth proportional to 90,045.04, 124,261.68 and 49,761.60 is: 68,670.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,045.04 : 124,261.68 = 49,761.60 : x
  2. Step 2: Convert to fraction form
    90,045.04/124,261.68 = 49,761.60/x
  3. Step 3: Cross multiply
    90,045.04x = 124,261.68 × 49,761.60
  4. Step 4: Simplify right side
    90,045.04x = 6,183,460,015.49
  5. Step 5: Solve for x
    x = 6,183,460,015.49/90,045.04
  6. Step 6: Final answer
    x = 68,670.75

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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.