Home / 90,106.23-124,339.98-49,820.49

Finding the Fourth Proportional to 90,106.23, 124,339.98 and 49,820.49

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Solution

The fourth proportional to 90,106.23, 124,339.98 and 49,820.49 is: 68,748.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,106.23 : 124,339.98 = 49,820.49 : x
  2. Step 2: Convert to fraction form
    90,106.23/124,339.98 = 49,820.49/x
  3. Step 3: Cross multiply
    90,106.23x = 124,339.98 × 49,820.49
  4. Step 4: Simplify right side
    90,106.23x = 6,194,678,730.19
  5. Step 5: Solve for x
    x = 6,194,678,730.19/90,106.23
  6. Step 6: Final answer
    x = 68,748.62

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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.