Home / 90,173.04-124,362.09-54,355.56

Finding the Fourth Proportional to 90,173.04, 124,362.09 and 54,355.56

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Solution

The fourth proportional to 90,173.04, 124,362.09 and 54,355.56 is: 74,964.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,173.04 : 124,362.09 = 54,355.56 : x
  2. Step 2: Convert to fraction form
    90,173.04/124,362.09 = 54,355.56/x
  3. Step 3: Cross multiply
    90,173.04x = 124,362.09 × 54,355.56
  4. Step 4: Simplify right side
    90,173.04x = 6,759,771,044.72
  5. Step 5: Solve for x
    x = 6,759,771,044.72/90,173.04
  6. Step 6: Final answer
    x = 74,964.44

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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.