Home / 90,012.95-124,215.68-49,730.57

Finding the Fourth Proportional to 90,012.95, 124,215.68 and 49,730.57

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Solution

The fourth proportional to 90,012.95, 124,215.68 and 49,730.57 is: 68,626.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,012.95 : 124,215.68 = 49,730.57 : x
  2. Step 2: Convert to fraction form
    90,012.95/124,215.68 = 49,730.57/x
  3. Step 3: Cross multiply
    90,012.95x = 124,215.68 × 49,730.57
  4. Step 4: Simplify right side
    90,012.95x = 6,177,316,072.59
  5. Step 5: Solve for x
    x = 6,177,316,072.59/90,012.95
  6. Step 6: Final answer
    x = 68,626.97

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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.