Home / 90,416.48-124,768.62-52,177.64

Finding the Fourth Proportional to 90,416.48, 124,768.62 and 52,177.64

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Solution

The fourth proportional to 90,416.48, 124,768.62 and 52,177.64 is: 72,001.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,416.48 : 124,768.62 = 52,177.64 : x
  2. Step 2: Convert to fraction form
    90,416.48/124,768.62 = 52,177.64/x
  3. Step 3: Cross multiply
    90,416.48x = 124,768.62 × 52,177.64
  4. Step 4: Simplify right side
    90,416.48x = 6,510,131,513.81
  5. Step 5: Solve for x
    x = 6,510,131,513.81/90,416.48
  6. Step 6: Final answer
    x = 72,001.61

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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.