Home / 90,106.85-124,348.32-49,272.21

Finding the Fourth Proportional to 90,106.85, 124,348.32 and 49,272.21

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Solution

The fourth proportional to 90,106.85, 124,348.32 and 49,272.21 is: 67,996.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,106.85 : 124,348.32 = 49,272.21 : x
  2. Step 2: Convert to fraction form
    90,106.85/124,348.32 = 49,272.21/x
  3. Step 3: Cross multiply
    90,106.85x = 124,348.32 × 49,272.21
  4. Step 4: Simplify right side
    90,106.85x = 6,126,916,536.19
  5. Step 5: Solve for x
    x = 6,126,916,536.19/90,106.85
  6. Step 6: Final answer
    x = 67,996.12

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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.