Home / 90,302.04-124,617.75-54,485.13

Finding the Fourth Proportional to 90,302.04, 124,617.75 and 54,485.13

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Solution

The fourth proportional to 90,302.04, 124,617.75 and 54,485.13 is: 75,190.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,302.04 : 124,617.75 = 54,485.13 : x
  2. Step 2: Convert to fraction form
    90,302.04/124,617.75 = 54,485.13/x
  3. Step 3: Cross multiply
    90,302.04x = 124,617.75 × 54,485.13
  4. Step 4: Simplify right side
    90,302.04x = 6,789,814,309.06
  5. Step 5: Solve for x
    x = 6,789,814,309.06/90,302.04
  6. Step 6: Final answer
    x = 75,190.04

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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.