Home / 90,186.42-124,456.68-49,899.45

Finding the Fourth Proportional to 90,186.42, 124,456.68 and 49,899.45

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Solution

The fourth proportional to 90,186.42, 124,456.68 and 49,899.45 is: 68,860.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,186.42 : 124,456.68 = 49,899.45 : x
  2. Step 2: Convert to fraction form
    90,186.42/124,456.68 = 49,899.45/x
  3. Step 3: Cross multiply
    90,186.42x = 124,456.68 × 49,899.45
  4. Step 4: Simplify right side
    90,186.42x = 6,210,319,880.83
  5. Step 5: Solve for x
    x = 6,210,319,880.83/90,186.42
  6. Step 6: Final answer
    x = 68,860.92

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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.