Home / 90,117.14-124,360.35-49,830.02

Finding the Fourth Proportional to 90,117.14, 124,360.35 and 49,830.02

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Solution

The fourth proportional to 90,117.14, 124,360.35 and 49,830.02 is: 68,764.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,117.14 : 124,360.35 = 49,830.02 : x
  2. Step 2: Convert to fraction form
    90,117.14/124,360.35 = 49,830.02/x
  3. Step 3: Cross multiply
    90,117.14x = 124,360.35 × 49,830.02
  4. Step 4: Simplify right side
    90,117.14x = 6,196,878,727.71
  5. Step 5: Solve for x
    x = 6,196,878,727.71/90,117.14
  6. Step 6: Final answer
    x = 68,764.71

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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.