Home / 90,276.89-124,582.02-49,990.65

Finding the Fourth Proportional to 90,276.89, 124,582.02 and 49,990.65

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Solution

The fourth proportional to 90,276.89, 124,582.02 and 49,990.65 is: 68,987.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,276.89 : 124,582.02 = 49,990.65 : x
  2. Step 2: Convert to fraction form
    90,276.89/124,582.02 = 49,990.65/x
  3. Step 3: Cross multiply
    90,276.89x = 124,582.02 × 49,990.65
  4. Step 4: Simplify right side
    90,276.89x = 6,227,936,158.11
  5. Step 5: Solve for x
    x = 6,227,936,158.11/90,276.89
  6. Step 6: Final answer
    x = 68,987.05

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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.