Home / 90,038.66-124,251.68-49,751.57

Finding the Fourth Proportional to 90,038.66, 124,251.68 and 49,751.57

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Solution

The fourth proportional to 90,038.66, 124,251.68 and 49,751.57 is: 68,656.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,038.66 : 124,251.68 = 49,751.57 : x
  2. Step 2: Convert to fraction form
    90,038.66/124,251.68 = 49,751.57/x
  3. Step 3: Cross multiply
    90,038.66x = 124,251.68 × 49,751.57
  4. Step 4: Simplify right side
    90,038.66x = 6,181,716,155.14
  5. Step 5: Solve for x
    x = 6,181,716,155.14/90,038.66
  6. Step 6: Final answer
    x = 68,656.24

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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.