Home / 90,174.04-124,363.47-54,356.56

Finding the Fourth Proportional to 90,174.04, 124,363.47 and 54,356.56

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Solution

The fourth proportional to 90,174.04, 124,363.47 and 54,356.56 is: 74,965.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,174.04 : 124,363.47 = 54,356.56 : x
  2. Step 2: Convert to fraction form
    90,174.04/124,363.47 = 54,356.56/x
  3. Step 3: Cross multiply
    90,174.04x = 124,363.47 × 54,356.56
  4. Step 4: Simplify right side
    90,174.04x = 6,759,970,418.86
  5. Step 5: Solve for x
    x = 6,759,970,418.86/90,174.04
  6. Step 6: Final answer
    x = 74,965.82

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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.