Home / 90,178.14-124,448.14-54,370.45

Finding the Fourth Proportional to 90,178.14, 124,448.14 and 54,370.45

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Solution

The fourth proportional to 90,178.14, 124,448.14 and 54,370.45 is: 75,032.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,178.14 : 124,448.14 = 54,370.45 : x
  2. Step 2: Convert to fraction form
    90,178.14/124,448.14 = 54,370.45/x
  3. Step 3: Cross multiply
    90,178.14x = 124,448.14 × 54,370.45
  4. Step 4: Simplify right side
    90,178.14x = 6,766,301,373.46
  5. Step 5: Solve for x
    x = 6,766,301,373.46/90,178.14
  6. Step 6: Final answer
    x = 75,032.61

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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.